NSSCO Hospitality 6156 cheat sheet

The six nutrient classes are carbohydrates, proteins, fats, vitamins, minerals and water; only the first three supply energy (water supplies none but is essential).

Energy values (Atwater factors): carbohydrate 4 kcal/g, protein 4 kcal/g, fat 9 kcal/g, alcohol 7 kcal/g. Energy (kcal) = (g carb × 4) + (g protein × 4) + (g fat × 9).

Macronutrient energy contribution percentages are calculated by dividing each nutrient's kcal by total kcal and multiplying by 100.

Protein is built from amino acids; nine are indispensable (essential) for adults, and a protein supplying all of them in adequate amounts is complete - animal proteins and soy are typical examples.

Complementary protein pairing combines a cereal low in lysine with a legume low in methionine (e.g., rice and beans) to raise overall protein quality.

Fat-soluble vitamins are A, D, E and K; they are stored in body fat and liver, so deficiency develops slowly, whereas water-soluble B vitamins and vitamin C are excreted and needed more regularly.

Vitamin C and the B group are heat- and water-sensitive: long boiling and prolonged holding destroy or leach them, so short cooking times and minimal water preserve them.

Deficiency markers: vitamin A - night blindness; vitamin D - rickets in children; iron - microcytic anaemia; iodine - goitre; vitamin C - scurvy (bleeding gums, poor wound healing).

A balanced diet supplies energy and nutrients in the proportions shown by food guides (e.g., staples, vegetables and fruit, animal foods, fats/oils); energy balance is intake versus expenditure, with 1 kg body fat ≈ 7,700 kcal.

Dry-heat methods (roasting, grilling, baking, frying) rely on hot air or fat; moist-heat methods (boiling, steaming, poaching, stewing) rely on water or steam; combination methods (braising, pot-roasting) use both.

Heat transfer occurs by conduction (direct contact, e.g., pan to food), convection (moving air or liquid, e.g., oven fan, boiling water) and radiation (infrared from grill or hot element).

Maillard browning occurs between amino acids and reducing sugars above about 140 °C and needs a dry surface; it produces flavour and colour but not in a wet environment.

Caramelisation is the browning of sugars alone (no protein needed) and begins around 160 °C; it is distinct from Maillard browning.

Coagulation sets protein (egg white from about 60–65 °C, muscle protein around 60–70 °C); overcooking squeezes out water and toughens food.

Gelatinisation: starch granules absorb water and thicken on heating (about 60–95 °C depending on starch); on cooling, retrogradation can cause staling or syneresis (weeping).

Emulsions combine fat and water via an emulsifier (lecithin in egg yolk); mayonnaise is oil-in-water and breaks if oil is added too fast.

Enzymatic browning (polyphenol oxidase) darkens cut apples and potatoes; acid, blanching or excluding oxygen slows it.

Cooking losses: boiling leaches water-soluble vitamins into cooking water, while grilling and frying can cause vitamin loss but retain minerals; steaming minimises leaching.

The temperature danger zone is 5 °C to 60 °C; bacteria multiply fastest between about 20 °C and 50 °C, and perishable food should not sit in this zone for more than 2 hours.

High-risk foods are moist, protein-rich and near-neutral pH: meat, poultry, seafood, dairy, eggs, cooked rice and gravies.

The 4 Cs of food safety are Cleaning, Cooking, Chilling and Cross-contamination prevention.

Safe internal temperatures: poultry and reheated food to at least 74 °C; minced meat to 71 °C; whole cuts of pork/beef to 63 °C with resting time.

Cooling rule: cool cooked food from 60 °C to 5 °C within about 2 hours (divide into shallow containers, use ice baths), then refrigerate.

Cross-contamination is prevented by separate colour-coded chopping boards, separate knives, and never placing cooked food on a surface that held raw meat.

Handwashing steps: wet hands, apply soap, lather and scrub including nails for at least 20 seconds, rinse, dry with a disposable towel or hot-air dryer.

Sanitation terms: cleaning removes visible soil; sanitising reduces microorganisms to safe levels; sterilising destroys all microorganisms. Chemical sanitisers must be used at label dilution and contact time.

Pests and waste: bins with lids, waste removed daily, food stored 15 cm off the floor and away from walls, and the FIFO (first in, first out) stock rule reduce contamination risk.

Service sequence: greeting and seating, presenting the menu, taking the order, serving food and beverages, clearing, presenting the bill and bidding farewell.

Silver (English) service: food is presented on a platter and served from the guest's left with the right hand; beverages are served and cleared from the guest's right.

Plate service is the most common and cost-effective method: food is plated in the kitchen and carried to the guest.

French (guéridon) service finishes dishes at a side table in front of the guest; Russian service uses platters held by the server.

Table setting: forks on the left, knives and spoons on the right, the knife blade facing the fork; the napkin goes on the left or centre; glassware sits above the knife tip.

Cover layout: the cover is the place setting for one guest; the distance between covers should be about 60 cm for comfort.

Types of menu service: à la carte (each item priced separately), table d'hôte (fixed price, set courses) and buffet (self-service from a display).

Beverage service: wine is presented label-forward to the host, a small amount is poured for tasting, then served to guests in order; glasses are held by the stem.

The bill is presented on a small plate or folder, face down or in a folder, and payment is handled discreetly; change is returned on a tray.

Front-office cycle: pre-arrival (reservation, registration preparation), arrival (check-in, registration card, key issue), occupancy (concierge, information, cashiering), departure (check-out, bill settlement, key return) and post-departure (guest history, follow-up).

Room status codes: VC (vacant clean), VD (vacant dirty), OC (occupied clean), OD (occupied dirty), OOO (out of order - maintenance) and DND (do not disturb).

Key performance indicators: Occupancy % = (rooms sold ÷ rooms available) × 100; ADR (average daily rate) = room revenue ÷ rooms sold; RevPAR = room revenue ÷ rooms available = ADR × occupancy.

Reservation types: guaranteed (held with a deposit or credit card) versus non-guaranteed (released after a cut-off time); overbooking is managed with a walk policy.

Registration requires valid identification and a signed registration card; the guest's data must be protected under data-protection principles.

Departure procedure: verify the folio, check for outstanding charges, settle the bill, return the key and update room status to VD.

Guest complaint handling: listen, acknowledge, apologise, resolve within authority, record and follow up.

Departments: rooms division (front office, housekeeping), food and beverage, sales and marketing, finance, human resources, engineering and security.

Housekeeping tasks: room cleaning, bed making, linen and laundry, public-area cleaning, guest supplies, lost-and-found handling and turndown service.

Cleaning sequence for a room: remove rubbish, strip and make the bed, dust from top to bottom, clean the bathroom, vacuum from the far corner to the door, and check the room.

Bed-making: place the mattress protector, bottom sheet, top sheet, blanket and duvet; hospital corners are used on the bottom sheet; the top sheet is folded back about 30 cm over the blanket.

Bathroom cleaning order: clean the least soiled area first (mirror, basin, bath, then toilet last) to avoid transferring contamination.

Colour-coded cloths prevent cross-contamination: one colour for the toilet, another for basins, another for dusting; never use the same cloth for the toilet and the basin.

Linen par stock is the quantity of linen kept to cover rooms in use plus soiled linen in the laundry plus a safety reserve; a common formula is 3–4 sets per room.

Room status is updated from VD to VC after cleaning and inspection; the housekeeping report is reconciled with front-office records.

Lost property is logged with date, place found, description and finder's name, stored securely and returned only against identification.

Safety: never use a wet cloth on electrical fittings, display the wet-floor sign, and keep housekeeping carts clear of fire exits.

Menu-planning factors: customer profile and preferences, nutritional balance, seasonality and availability, cost and budget, kitchen equipment and staff skills, and variety of colour, texture, flavour and method.

Menu-course order for a full dinner: appetiser/starter, soup, fish, main (entrée), salad, dessert, cheese, beverage; à la carte menus may offer any subset.

Standard recipe: a documented formula listing ingredients, exact quantities, yield, portion size, method and cost for a fixed number of portions.

Recipe costing: ingredient cost = quantity used × unit price; total recipe cost ÷ number of portions = food cost per portion; selling price = food cost ÷ food-cost percentage.

Food-cost percentage = (cost of food sold ÷ food sales) × 100; a lower percentage means better cost control.

Portion control uses scales, ladles and scoops to ensure each plate matches the standard recipe, protecting both cost and consistency.

Purchasing cycle: requisition, supplier selection, ordering, receiving, storing, issuing and inventory control; a purchase order authorises the order and a receiving report verifies it.

FIFO stock rotation places older stock in front; stock is counted physically and compared with the perpetual inventory to detect shrinkage.

Break-even point in covers = fixed costs ÷ (average selling price per cover − variable cost per cover).

Knife cuts: julienne (matchsticks about 3 mm × 3 mm × 4 cm), brunoise (3 mm dice), chiffonade (thin shreds of leafy herbs), dice (small, medium, large), and paysanne (thin flat shapes).

Mise en place means preparing and organising all ingredients and equipment before service; it reduces errors and speeds production.

Standard breading procedure: flour → egg wash → breadcrumbs; keep one hand for dry and one for wet, and chill before frying.

Roux (equal weights of butter and flour) is the base for white sauce; a blond roux is used for velouté and a brown roux for brown sauce.

Whisking egg white to a foam (meringue) requires a clean, grease-free bowl; any fat prevents stiff peaks.

Plating principles: balance, portion size, colour contrast, height, negative space and a clean rim; hot food on hot plates, cold food on chilled plates.

Food-holding: hot food held above 60 °C and cold food below 5 °C; check with a probe thermometer and record temperatures.

Carving and portioning: rest roasted meat before carving so juices redistribute; carve across the grain into equal slices for tenderness and even portions.

Service readiness checklist: clean uniform, washed hands, polished cutlery and glassware, menu knowledge and a check of the table setting before guests arrive.

Digestion overview: carbohydrates break down to monosaccharides, proteins to amino acids and fats to fatty acids and glycerol, mainly in the small intestine.

Glycaemic index ranks carbohydrate foods by blood-glucose rise; high-fibre, whole-grain foods generally have a lower GI.

Dietary fibre (soluble and insoluble) aids bowel function and slows glucose absorption; it is found in wholegrains, legumes, fruit and vegetables.

Energy requirement depends on basal metabolic rate, physical activity level and thermic effect of food; BMR is the energy used at complete rest.

Special diets: diabetic (controlled sugars and refined carbohydrate), low-sodium (hypertension), gluten-free (coeliac disease - no wheat, barley, rye) and lactose-free (lactose intolerance).

Nutrient loss in cooking: peeling removes fibre and vitamins near the skin; soaking and boiling leach B and C vitamins; baking soda added to vegetables destroys vitamin C.

Food labels list ingredients in descending order by weight and give energy and nutrient content per 100 g and per serving.

Allergen awareness: the major allergens include milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soy and sesame; these must be declared in food service.

HACCP has seven principles: hazard analysis, critical control points, critical limits, monitoring, corrective action, verification and record-keeping.

A critical control point (CCP) is a step where a hazard can be prevented, eliminated or reduced to a safe level, e.g., cooking to 74 °C.

Personal hygiene rules: no jewellery or nail polish, hair restrained, clean uniform, no eating or smoking in the kitchen, report illness (vomiting, diarrhoea) and stay away from food.

Cleaning chemicals must be stored separately from food, labelled, and used at the correct dilution; never mix bleach with acid or ammonia cleaners.

Refrigeration: fridges at 1–4 °C, freezers at −18 °C or below; raw food stored below cooked and ready-to-eat food on separate shelves.

Pest control: keep doors and windows screened, seal gaps, store food off the floor, and use licensed pest controllers; baits must be placed away from food.

Food-borne illness examples: Salmonella (poultry, eggs), Staphylococcus aureus (hands, wounds), Clostridium botulinum (anaerobic, canned foods) and Listeria (chilled ready-to-eat foods).

Cleaning schedule (cleaning programme) lists what is cleaned, by whom, how often, with what chemical and how it is verified.

Temperature control records, delivery checks and staff-training records form the evidence for a food-safety management system.

Table-service styles: English/silver, French/guéridon, Russian, American/plate and family style; each differs in where food is plated and who serves.

Napkin folds: the basic fold is the simplest; the bishop's hat and fan are decorative folds for formal covers; the napkin is placed on the left or centre of the cover.

Carrying and clearing: carry plates on the left forearm or a tray; clear from the guest's right, and never stack plates at the table in fine dining.

Order of service at a banquet: greet, seat, serve bread and butter, take the order, serve courses in sequence, clear each course before the next, then serve coffee.

Wine service: white wine is served chilled (about 8–12 °C), red at room temperature (about 16–18 °C); the bottle is opened at the table and the cork presented to the host.

Bar measures: a standard pub measure is 25 ml or 35 ml depending on the country; a standard drink contains about 10 g of pure alcohol.

Beverage types: aperitifs before a meal, digestifs after; table wine with the meal; non-alcoholic options must always be offered.

Handling cutlery: hold by the handle, never touch the eating end; polish glassware with a clean cloth and hold by the stem or base.

Service quality: greet within a set time, anticipate refills, check back after serving and handle complaints promptly and politely.

Property management systems (PMS) record reservations, room status, guest accounts and housekeeping updates in real time.

Reservation sources: direct (walk-in, telephone, website) and indirect (travel agents, tour operators, online travel agencies, global distribution systems).

Cancellation and no-show policies protect revenue; guaranteed reservations may be charged one night's room rate.

Check-in steps: greet, confirm the reservation, request identification, complete the registration card, assign the room, issue the key and explain facilities.

Guest folio: a record of charges and payments for one guest; the city ledger holds accounts transferred for later settlement.

Yield management adjusts room rates by demand, season and booking lead time to maximise RevPAR.

Safety and security: key control, guest privacy, CCTV in public areas, fire evacuation procedures and first-aid arrangements.

Communication: the front office coordinates with housekeeping (room status), maintenance (repairs) and food and beverage (meal plans, functions).

Night audit: reconciles daily transactions, posts room charges, checks no-shows and produces the daily revenue report.

Room types: single, double, twin, triple, family, suite, studio and connecting/adjoining rooms; bed sizes include single, double, queen and king.

Housekeeping section: a group of rooms assigned to one room attendant for cleaning in a shift, with a typical workload of 12–16 rooms.

Turndown service is an evening service that folds back the bed, replaces towels, empties bins and leaves a small amenity.

Laundry cycle: sorting, washing, rinsing, hydro-extraction, drying, ironing and folding; linen is checked for stains and tears before reuse.

Stain removal: treat the stain as soon as possible, identify it first, use cold water for protein stains (blood, egg) and blot rather than rub.

Public-area cleaning includes lobbies, corridors, lifts, toilets and staircases; high-touch points (handles, buttons) need frequent attention.

Guest supplies: soap, shampoo, towels, stationery and drinking water are replenished to the room standard; shortages are recorded and requisitioned.

Maintenance reporting: any defect found during cleaning is reported immediately and the room may be blocked out of order until repaired.

Deep cleaning is scheduled periodically (e.g., carpets, mattresses, curtains) and is planned around occupancy.

Menu types: à la carte, table d'hôte, buffet, cycle menu (repeats over a fixed period), static menu (unchanged) and du jour (dish of the day).

Menu balance considers colour, texture, flavour, temperature, cooking method and nutritional content across the whole meal.

Standard yield testing: yield % = (edible portion weight ÷ as-purchased weight) × 100; it is used to calculate the true cost of a portion.

As-purchased quantity = edible portion required ÷ yield percentage.

Portion cost = (as-purchased price per unit × quantity used) ÷ number of portions.

Gross profit = selling price − food cost; gross profit margin % = (gross profit ÷ selling price) × 100.

Purchasing documents: requisition, purchase order, delivery note, invoice and goods-received note; three-way matching compares order, delivery note and invoice before payment.

Supplier selection criteria: quality, price, reliability of delivery, credit terms, food-safety standards and range of products.

Inventory methods: perpetual (continuous record) and periodic (physical count); stock turnover = cost of goods used ÷ average stock value.

Weighing and measuring: use digital scales for dry ingredients, a measuring jug at eye level for liquids, and measuring spoons for small quantities.

Oven temperature conversions: 160 °C ≈ 325 °F ≈ gas mark 3; 180 °C ≈ 350 °F ≈ gas mark 4; 200 °C ≈ 400 °F ≈ gas mark 6.

Pastry types: shortcrust (rubbing fat into flour), choux (panada plus eggs, baked until crisp), puff (layers of fat and dough) and filo (paper-thin sheets).

Sauce families: béchamel (milk), velouté (white stock), espagnole (brown stock), hollandaise (butter emulsion) and tomato; these are the five mother sauces.

Egg cookery: hard-boiled 9–10 minutes, soft-boiled 3–4 minutes, poached 3–4 minutes in simmering water with vinegar.

Resting and holding: rest meat for 5–20 minutes before carving; hold hot food above 60 °C and cold food below 5 °C.

Garnishing must be edible, relevant to the dish and applied with clean hands or tools; never use a garnish to hide a fault.

Service sequence in a restaurant: greet within a set time, take orders, serve food and drink in course order, check back, clear and present the bill.

End-of-service duties: switch off and clean equipment, store food correctly, clean surfaces, empty bins and record temperatures.

Healthy-eating guidelines: eat a variety of foods, base meals on starchy staples, eat plenty of fruit and vegetables (at least five portions a day), limit fat, sugar and salt, and drink enough water.

Salt: the recommended maximum is about 5 g of salt (about 2 g sodium) per day for adults; excess is linked to high blood pressure.

Free sugars should provide less than 10% of daily energy; fat should provide no more than about 30–35% of energy, with saturated fat under 10%.

Obesity is excess body fat; it raises the risk of type 2 diabetes, heart disease and joint problems.

Protein-energy malnutrition (PEM) includes marasmus (severe energy and protein deficit, wasting) and kwashiorkor (protein deficit with oedema).

Anaemia from iron deficiency reduces oxygen transport; iron from meat (haem) is absorbed better than plant iron, and vitamin C aids absorption.

Osteoporosis is loss of bone density linked to low calcium and vitamin D intake and reduced physical activity.

Food allergies involve the immune system and can be life-threatening (anaphylaxis); food intolerance does not involve the immune system.

Nutrition across life stages: pregnancy needs extra folate and iron; infants need breast milk or formula; the elderly need calcium, vitamin D and adequate protein.

Bacteria need moisture, food, warmth, time, acidity (near-neutral pH) and oxygen (or its absence) to grow; controlling any one factor limits growth.

Spore-formers such as Clostridium perfringens and Bacillus cereus survive cooking; cooked rice and stews must be cooled quickly and reheated thoroughly.

Bacillus cereus has two forms: a vomiting toxin in cooked rice held warm and a diarrhoeal form in protein foods.

Virus contamination (norovirus, hepatitis A) comes from infected food handlers and is controlled by handwashing and excluding sick staff.

Moulds grow in warm, moist, acidic conditions and produce mycotoxins; visible mould on soft food means the whole item is discarded.

Yeasts ferment sugars and cause spoilage in jams, juices and pickles; refrigeration and airtight storage slow them.

Cross-contamination routes: hands, cloths, chopping boards, knives, drip from raw food and pests.

Cooling and reheating: cool food rapidly within 2 hours to below 5 °C; reheat to at least 74 °C and reheat only once.

Cleaning verification: visual inspection, ATP swabs and microbiological swabs confirm that cleaning has worked.

Coffee types: espresso (concentrated shot), americano (espresso plus hot water), cappuccino (espresso, steamed milk and foam in equal parts) and latte (more milk, thin foam).

Tea service: warm the pot, use freshly boiled water, allow the correct infusion time (about 3–5 minutes) and offer milk, lemon or sugar separately.

Beer service: lager is served cold (about 4–8 °C), ale slightly warmer; pour down the side of a clean glass to control the head.

Spirits: a standard measure is 25 ml or 35 ml; spirits are served neat, on the rocks or with a mixer.

Cocktail components: base spirit, modifier (e.g., vermouth, juice), flavouring and garnish; shaken drinks are aerated, stirred drinks are clear.

Responsible service of alcohol: check age, refuse service to intoxicated guests, offer food and non-alcoholic alternatives, and arrange safe transport.

Glassware hygiene: wash in hot detergent water, rinse, air-dry upside down; never polish the inside of a glass with a cloth that may leave lint.

Bar stock control: measure every pour, record wastage, and reconcile stock issued with stock sold to detect loss.

Rooms revenue = rooms sold × ADR; total occupancy % can be calculated over a period, not just for one night.

Revenue per available room (RevPAR) combines occupancy and rate, so raising occupancy with heavy discounting may not raise RevPAR.

Forecasting uses historical occupancy, bookings on hand, season and local events to predict demand and plan staffing.

Overbooking is deliberate when no-show rates are predictable; a walk procedure covers a displaced guest with transport, accommodation and compensation.

Guest-history records store preferences and previous stays to personalise service and target marketing.

Front-office cashiering: post charges to the folio, accept payment by cash, card or account, and balance the cashier's float at shift end.

Hotel classification and grading schemes (stars) assess facilities, service and quality; they vary by country and are not universal.

Crisis management: fire, medical emergency and security incidents follow written procedures with designated wardens and assembly points.

A well-made bed has a smooth, tight bottom sheet, a top sheet folded back over the blanket, and pillows plumb and facing the headboard.

Room inspection checklist: bed, bathroom, dust, floors, mirrors, bins emptied, supplies replenished, lights and appliances working, and no odours.

Bathroom amenities standard: clean towels, soap, shampoo, toilet paper, drinking glasses and a clean bin; the toilet is cleaned last.

Guest privacy: knock and announce before entering, wait, then enter; never enter an occupied room without permission and respect the DND sign.

Servicing an occupied room: empty bins, make the bed, replace used towels, clean the bathroom and replenish supplies without moving the guest's belongings.

Safety in housekeeping: correct lifting technique, no overloading of carts, wet-floor signs, and reporting faulty equipment immediately.

Linen control: count linen issued and returned, record damage and stains, and store clean linen on covered shelves away from the floor.

Checkout room procedure: strip the bed, check for forgotten items, report lost property, clean and reset the room to the standard.

The menu is a selling tool and a control tool: it sets the equipment, staffing, purchasing and pricing plan for the operation.

Pricing methods: cost-plus (food cost ÷ target food-cost %), competitive pricing (match the market) and psychological pricing (e.g., 9.95).

Menu engineering classifies dishes by popularity and profitability into stars (high/high), plough horses (high popularity, low profit), puzzles (low popularity, high profit) and dogs (low/low).

Stars are kept and promoted; dogs are removed or re-costed; puzzles are repositioned or renamed to raise sales.

Standard recipes allow consistent costing and let any trained cook produce the same dish.

Waste and shrinkage must be included in costing; trim, cooking loss and over-portioning all raise the true food cost.

Menu language should be clear and honest: describe the dish and its main ingredients, avoid misleading claims and declare allergens.

Cycle menus reduce repetition and simplify purchasing; they are common in hospitals, schools and staff canteens.

Menu review considers sales mix, customer feedback, cost changes and seasonality.

Sautéing uses a small amount of fat over high heat with constant movement; the pan must be hot before the food is added.

Shallow-frying cooks food in about 1–2 cm of oil; deep-frying submerges it, typically at 175–190 °C, and food must be dry to avoid spitting.

Blanching briefly immerses food in boiling water then refreshes it in ice water to set colour and stop cooking.

Steaming preserves water-soluble nutrients because the food does not sit in water; it is suitable for delicate foods.

Braising sears the food, then cooks it slowly in a covered pot with a little liquid; pot-roasting uses a larger cut with more liquid.

Roasting and baking use dry oven heat; searing meat first develops flavour through Maillard browning.

Poaching cooks food in liquid at 70–85 °C, below a simmer, and suits eggs, fish and fruit.

Grilling uses radiant heat from above or below; food should be turned once and allowed to form grill marks.

Reduction concentrates flavour by simmering a liquid to evaporate water; it must not be allowed to burn or over-salt.

Meat structure: muscle fibres (actin and myosin), connective tissue (collagen and elastin) and fat; collagen converts to gelatine with long, moist cooking, while elastin does not soften.

Tenderising methods: mechanical (beating, mincing), chemical (acid marinades, papain) and ageing; slow moist cooking also tenderises.

Fish has little connective tissue and cooks quickly; it is done when the flesh flakes and turns opaque.

Eggs perform functions of binding, coating, thickening, emulsifying, aerating and glazing; egg white foams when whisked.

Milk proteins coagulate with acid or heat; milk scalds when overheated, and evaporated or condensed milk differs by added sugar.

Cereals: starch gelatinises when cooked; gluten forms when wheat flour is mixed with water and develops with kneading.

Pulses and legumes are high in protein and fibre but low in the sulphur amino acids; they must be soaked and boiled thoroughly (especially kidney beans) to destroy toxins.

Fruit and vegetables: enzymatic browning, chlorophyll loss (acid turns it olive-green, alkali bright green but mushy), and vitamin C loss on cutting and heating.

Fats and oils: smoke point determines suitability for frying; repeated heating causes breakdown and off-flavours.

Kitchen design follows a linear workflow from delivery → storage → preparation → cooking → plating → service to prevent cross-contamination.

Floors should be non-slip, impervious and coved at wall joints; walls light-coloured and washable; adequate ventilation removes steam, smoke and fumes.

Handwash basins must be separate from food-preparation sinks and supplied with soap, hot water and disposable towels.

Equipment must be food-contact approved, smooth and easy to clean; wooden boards are not suitable for raw meat.

Cleaning chemicals must never be stored in unlabelled containers or in food containers; keep the safety data sheet available.

Waste bins need tight lids and foot pedals; waste is removed at least daily and the bin area cleaned.

Refuse and delivery areas are kept separate from food storage; deliveries are checked for temperature and packaging integrity.

Water supply must be potable; ice machines are cleaned on a schedule because they are a common contamination point.

Pest proofing: screens, door sweeps, sealed cracks and no food left exposed overnight.

Restaurant brigade: maître d'hôtel (host), restaurant manager, chef de rang (station head), commis de rang (assistant) and sommelier (wine).

Station (rang) system assigns each server a set of tables so service is consistent and accountability is clear.

Reservation and seating plan balances the workload across stations and avoids seating all guests in one area.

Types of service: counter, cafeteria, buffet, family, plate and silver; the choice depends on menu, price and staff skill.

Cover count and average spend per cover are used to measure restaurant performance.

Upselling and suggestive selling increase revenue but must be honest and based on guest needs.

Mise en place for service includes polished cutlery, clean linen, condiments, water and menu knowledge.

Billing: split bills, separate charges and service charges must be accurate; gratuities are handled per policy.

Closing duties: cash-up, reset tables for the next service, clean the pass and store food correctly.

Communication process: sender, message, channel, receiver, feedback and noise; feedback confirms that the message was understood.

Active listening: give full attention, do not interrupt, paraphrase and confirm understanding.

Guest-complaint types: service delay, product fault, staff attitude and billing error; each needs a different corrective action.

Service recovery steps: listen, apologise, act, follow up; a resolved complaint can create a more loyal guest than no complaint at all.

Telephone technique: answer within a set number of rings, greet with the property name, speak clearly, confirm details and repeat the booking.

Body language and grooming create the first impression; uniform standards apply across front-of-house roles.

Cultural awareness: address guests by title and surname unless invited otherwise, respect dietary and religious needs, and avoid assumptions.

Confidentiality: guest information is shared only with those who need it to deliver the service.

Laundry sorting separates white from coloured, heavily soiled from lightly soiled, and checks pockets and damaged items.

Wash temperatures: hot (about 70–90 °C) for heavily soiled and infected linen, warm for colours, cool for delicate items.

Detergent choice depends on water hardness and fabric; bleach is used only on suitable white fabrics.

Drying and ironing: over-drying damages fibres; iron damp linen for a crisp finish and store flat or hanging to avoid creases.

Linen par stock formula: rooms × sets per room (typically 3–4) covers in-use, in-laundry and reserve linen.

Stain treatment: identify the stain, treat promptly, use cold water for protein and blood stains, and test chemicals on a hidden area.

Guest laundry: list items, agree the price and return time, and check for damage or missing buttons before washing.

Laundry safety: keep chemicals labelled, ventilate the area, and clean lint from dryers to prevent fire.

Linen replacement is planned by recording the life cycle and discarding torn or badly stained items.

The food-cost percentage compares the cost of food sold with food sales; it is the main control ratio in food service.

Cost of food sold = opening stock + purchases − closing stock (adjusted for staff meals and transfers).

Menu pricing formula: selling price = portion food cost ÷ target food-cost percentage (e.g., cost 2.00 ÷ 0.30 = 6.67).

Gross profit per cover = average selling price per cover − average food cost per cover.

Break-even covers = fixed costs ÷ gross profit per cover.

Cost control tools: standard recipes, portion control, receiving checks, stock rotation and monthly stocktakes.

Variance analysis compares actual food cost with the theoretical cost from standard recipes; a positive variance signals waste, theft or over-portioning.

Purchasing specifications state quality, size, grade and packaging so suppliers deliver consistently and comparable prices can be obtained.

Negotiating credit terms and buying in bulk can reduce unit cost but increase storage and spoilage risk.

Bread-making stages: weighing, mixing, kneading, proving (fermentation), knocking back, shaping, final proof and baking; gluten develops during kneading.

Yeast is a living organism that ferments sugar to carbon dioxide and alcohol; it is killed above about 55–60 °C and is inactive when chilled.

Cake-making methods: creaming (fat and sugar beaten, then eggs and flour), rubbing-in, melting, whisking (foam) and all-in-one.

Creaming traps air in fat; the mixture should be pale and fluffy before eggs are added gradually to prevent curdling.

Pastry tips: keep fat and water cold, handle lightly to avoid gluten development, and rest the dough before rolling.

Choux pastry: bring water, fat and flour to a panada, cool slightly, beat in eggs to a dropping consistency, pipe and bake until crisp.

Baking accuracy: weigh ingredients precisely, preheat the oven, and avoid opening the door early during rising.

Cooling and storage: cool cakes on a rack to prevent sogginess; store in airtight containers away from heat and moisture.

Icings and fillings: buttercream, ganache, royal icing and whipped cream differ in stability and storage requirements.

Body mass index (BMI) = weight (kg) ÷ height (m)²; underweight below 18.5, healthy 18.5–24.9, overweight 25–29.9 and obese 30 and above.

Basal metabolic rate is the energy used at rest; it is raised by physical activity and by the thermic effect of food.

Estimated energy requirement = BMR × physical activity level, adjusted for age, sex and body size.

Dietary reference values include EAR (estimated average requirement), RNI (reference nutrient intake) and LRNI (lower reference nutrient intake).

A food diary and 24-hour recall are common dietary assessment methods; both rely on accurate reporting.

Malnutrition screening uses weight loss, BMI and appetite; unintentional weight loss of more than 5% in a month warrants action.

The Eatwell-style guide proportions meals: about one-third starchy staples, one-third fruit and vegetables, with smaller amounts of dairy, protein and fats.

Hydration: about 6–8 glasses of fluid a day for adults, more in hot conditions or with physical activity.

Dietary change advice should be realistic, culturally acceptable and based on the whole diet rather than single foods.

Probe thermometers must be cleaned and sanitised before and after each use, and calibrated in ice water (0 °C) or boiling water (100 °C at sea level).

Delivery checks: chilled food at 5 °C or below, frozen food at −18 °C or below and solidly frozen, packaging intact and use-by dates valid.

Fridge storage order (top to bottom): ready-to-eat food, raw fish, raw whole meat, raw minced meat and poultry, with raw food covered and on the bottom.

Hot holding must keep food at 60 °C or above; cold holding at 5 °C or below; display units are checked and recorded at set intervals.

Cooling records show the time and temperature at start and finish; corrective action is recorded if the 2-hour target is missed.

Cleaning records show what was cleaned, when, by whom and the chemical used; they are evidence for inspections.

Training records show that staff have been trained in food hygiene and that refresher training is scheduled.

Traceability: batch codes and supplier records allow a product to be traced and recalled if a problem is found.

Allergen records list the allergens in each dish and are updated whenever a recipe changes.

À la carte menus offer individually priced dishes, giving choice but requiring more stock and skill; table d'hôte offers a fixed-price set meal with limited choice.

A buffet menu must keep hot food above 60 °C and cold food below 5 °C, with serving utensils for each dish to prevent cross-contamination.

Menu planning for special diets must identify allergens and modified dishes clearly, e.g., gluten-free, vegetarian, low-salt.

Nutritional balance across the menu means including fruit and vegetables, wholegrain options and grilled rather than only fried dishes.

Seasonal menus reduce cost and improve quality because produce is at its best and cheapest in season.

The menu must match available equipment and staff skill; a dish that cannot be produced consistently should not be listed.

Menu layout places high-profit items in the prime positions (top right and centre) and avoids price columns that encourage comparison by price alone.

Menu language should describe the dish honestly and avoid unverifiable claims such as 'healthy' without explanation.

A menu is reviewed regularly using sales mix and customer feedback to remove poor sellers and add new items.