Confectionery Craftsman key terms

A measure of the free, unbound water in a food that microorganisms and chemical reactions can use. Lowering it below about 0.85 generally stops bacterial growth and extends shelf life.

Combining several mild preservation factors, such as low water activity, low pH, refrigeration, and packaging, so that no single factor must be severe to keep the product safe and stable.

A documented system that identifies biological, chemical, and physical hazards in a process, sets critical control points with measurable limits, and defines monitoring, corrective actions, verification, and record keeping.

A process step where a control measure is applied and a measurable limit must be met to prevent, eliminate, or reduce a food safety hazard to an acceptable level, for example a metal detector check.

pH expresses the concentration of free hydrogen ions on a logarithmic scale, while total acidity measures all acid present. Both influence gel setting, sugar inversion, flavour, and microbial stability in confectionery.

Procedures that keep physical contaminants out of product, including sieving raw materials, metal detection or X-ray inspection, magnet checks, colour-coded equipment, breakable-glass registers, and strict control of tools and packaging.

Managing ingredients that must be declared, such as milk, nuts, soya, egg, and wheat, through segregated storage, dedicated utensils, validated cleaning between runs, and accurate labelling to prevent cross-contact.

The splitting of sucrose into glucose and fructose by heat and acid. It lowers the tendency to crystallise, increases sweetness and hygroscopicity, and must be controlled to avoid stickiness or graininess.

A glucose or invert syrup added to a sugar boil to interfere with sucrose crystallisation. It raises solubility, controls graining, and adjusts chewiness, texture, and the risk of recrystallisation during storage.

The unwanted formation of large sucrose crystals in a sugar confection, producing a rough or gritty texture. It is caused by seed crystals, excessive agitation, wrong sugar-to-syrup ratio, or drying out.

A confection made of a supersaturated sugar solution that is cooled and agitated so that many tiny crystals form, giving a smooth, opaque, creamy texture used as centres and fillings.

Deliberately adding fine sugar crystals or a fondant starter to a supersaturated syrup so that controlled small crystals form instead of spontaneous large ones. It is central to fondant and crystalline products.

The thermal breakdown of sugars without protein, producing brown colours and caramel, butterscotch, or bitter notes. It depends on temperature, time, and pH and is distinct from browning caused by amino acids.

A reaction between reducing sugars and amino acids or proteins that browns food and creates roasted, malty, or toasted flavours. It is important in milk-containing caramels and chocolate and is sensitive to heat and moisture.

A sugar-boiling stage around 146 to 155 degrees Celsius where a drop of syrup hardens and cracks when cooled in water. It corresponds to a residual moisture of roughly one to three percent in boiled sweets.

A jelly structure formed when high-methoxyl pectin, sugar, acid, and water are combined in the right proportions. Calcium and pH control setting; insufficient acid or sugar prevents a firm gel.

A soft elastic structure formed when gelatin hydrates in hot water and cools, creating a thermoreversible network. It melts on warming, so gelatin gummies need controlled drying and cool storage.

Equipment that deposits jelly or gum sweets into trays of moulded starch powder, which supports the pieces while they set and dry. The starch is later recovered, dried, and reused.

Controlled heating, cooling, and reheating of chocolate so that cocoa butter crystallises mainly in its stable beta form. Proper tempering gives gloss, snap, and resistance to fat bloom.

The stable polymorph of cocoa butter crystals that gives well-tempered chocolate its shine, firm snap, and clean melt. Other crystal forms are unstable and lead to bloom or poor contraction.

A greyish-white haze on chocolate caused by unstable cocoa butter crystals or fat migration to the surface. It is usually safe to eat but signals poor tempering or warm storage.

A rough white surface deposit formed when moisture dissolves sugar at the chocolate surface and the water then evaporates, leaving crystals. It results from condensation or damp storage, not from tempering faults alone.

Prolonged mixing and aeration of chocolate mass at controlled temperature that removes unwanted volatiles, reduces particle size perception, and develops smooth texture and rounded flavour.

Passing chocolate mass through roller refiners to reduce particle size, typically to 15 to 25 micrometres, so the finished chocolate feels smooth rather than gritty on the tongue.

An emulsion of melted chocolate and cream, often with butter or flavourings, used as filling or coating. Its ratio of chocolate to cream, water activity, and hygiene determine texture and shelf life.

A stable dispersion of one liquid in another, such as fat droplets in water. In ganache and toffee, correct mixing, temperature, and emulsifiers prevent separation or a greasy surface.

The breakdown of a mixture into visible layers, for example fat leaking from toffee or water weeping from a filling. It is caused by wrong ratios, overheating, or insufficient emulsification.

The average and distribution of solid particle sizes in a mass such as chocolate or fondant. Coarse particles cause grittiness, while very fine particles increase viscosity and require more fat.

A fluid's resistance to flow. In chocolate and syrups it depends on fat content, moisture, particle size, and temperature, and it governs coating thickness, depositing, and pumping behaviour.

Coating a centre by passing it through a falling curtain of tempered chocolate, then blowing off excess and vibrating to give an even shell. Curtain flow, temperature, and cooling tunnel settings are critical.

A machine that fills moulds or starch trays with a measured volume of syrup, fondant, or chocolate using hoppers, pistons, or nozzles. Weight and deposit temperature must be checked regularly.

The quantity of finished product obtained from a given recipe after losses such as evaporation, trimming, and sticking. It is used to scale batches and to calculate true ingredient cost per unit.

A multiplier used to convert a recipe from one batch size to another, calculated as desired yield divided by original yield. It must be applied to every ingredient and adjusted for equipment limits.

A method of expressing each ingredient as a percentage of a reference ingredient, usually flour or total sugar, so recipes can be resized and compared easily without recalculating every weight.

The period during which a product keeps acceptable safety, sensory quality, and legal compliance under stated storage conditions. It is established by testing and supported by packaging and storage controls.

The ability to follow a batch of ingredients or finished product one step back and one step forward through records, so a suspect lot can be identified and recalled quickly and precisely.

Marking each production run with a unique code, often including date and line, so that finished stock can be linked to its ingredients, process records, and test results for recall and complaint investigation.

The basic operational and hygiene rules that keep production safe and consistent, covering premises, personnel, cleaning, pest control, equipment maintenance, and documented procedures.