Foodservice Systems Management
The systems view
Foodservice is a system of inputs (food, labor, equipment, money), transformation (production and service), and outputs (meals, satisfaction, costs). Candidates should distinguish the four production systems: conventional (food prepared and served on site, short holding), commissary (central production transported to satellites), ready-prepared or cook-chill/cook-freeze (food cooked, rapidly chilled or frozen, reheated later), and assembly-serve (purchased pre-prepared items, minimal production). Questions often mislabel cook-chill as commissary; the key is whether food is chilled for later reheating, not merely transported.
Planning and control
Know menu-planning principles (nutritional adequacy, customer preference, cost, equipment, labor, seasonality), standardized recipes, yield testing, and the conversion factor: desired yield divided by current yield. Forecasts drive purchasing and production; production records document amounts prepared, served, and left over, supporting cost control and HACCP. Purchase specifications should state grade, form, count or size, and packaging; receiving checks quantity, quality, and temperature. Inventory uses FIFO and par levels. Traps include confusing as-purchased (AP) with edible-portion (EP) weight and ignoring shrink in yield calculations.
Worked example
A recipe yields 100 portions of 4 oz. You need 150 portions. Conversion factor = 150 / 100 = 1.5; multiply every ingredient by 1.5. If the recipe calls for 20 lb AP carrots at 80% yield, EP = 20 x 0.80 = 16 lb. To obtain 20 lb EP, AP = 20 / 0.80 = 25 lb.