English:Food Costing
Food Costing
Introduction
Food costing is the practical process of finding out what food and ingredients really cost a food-service business. You use it to cost recipes, control portions, set realistic selling prices, compare actual performance with standards, reduce avoidable waste, and make better purchasing decisions. In a professional kitchen, food costing connects culinary work with basic accounting, stock control, purchasing, and restaurant management.
This aiMOOC is designed for apprentices, trainees, and vocational students in restaurants, hotels, catering, bakeries, canteens, cafés, and other food-service settings. You will practise the calculations that matter at work and learn how accurate measurements support both quality and financial control.
In the worked examples, CU means currency units. Replace CU with the currency used in your workplace.
A professional kitchen turns purchased ingredients into saleable portions. Every stage can change the final cost: purchasing, receiving, storage, preparation, trimming, cooking, portioning, waste, and selling.
Why Food Costing Matters
Food-service businesses must earn enough revenue to pay for ingredients, labour, utilities, rent, equipment, cleaning, administration, taxes where applicable, and other operating costs. Food costing does not replace a full profit-and-loss calculation, but it gives you a controlled starting point for managing one of the most important variable costs in a kitchen.
Good food costing helps you answer practical questions such as:
- Recipe costing: What does one batch and one standard portion cost?
- Yield testing: How much usable product remains after trimming or cooking?
- Portion control: Are guests receiving the planned quantity every time?
- Inventory management: How much food was actually used during a period?
- Menu engineering: Which dishes combine useful contribution and customer demand?
- Food waste: Where is purchased food being lost without producing sales?
Food cost is not only a management issue. A cook who over-portions protein, fails to record waste, or ignores a recipe specification changes the financial result. A purchaser who orders the wrong pack size or a receiver who accepts poor-quality produce can also raise the real cost of a dish. Food cost control is therefore a team responsibility.
Standard Recipes and Unit Costs
A standardized recipe describes the ingredients, exact quantities, method, yield, and portion size needed to produce a consistent menu item. Standard recipes make costing possible because the expected quantity of every ingredient is known. They also support consistent quality, allergen control, production planning, and training.
A basic recipe cost sheet normally records the ingredient, recipe quantity, purchase unit, purchase price, unit cost, and recipe cost. Always compare like with like. If a supplier price is quoted per kilogram but the recipe uses grams, convert the unit before multiplying.
Basic unit-cost formula:
Unit cost = Purchase price ÷ Quantity in the purchase unit
Ingredient cost formula:
Ingredient cost = Quantity used × Cost per matching unit
Example: A 2.5 kg pack of cheese costs CU 22.50.
Cost per kilogram = 22.50 ÷ 2.5 = CU 9.00 per kg
Cost per gram = 9.00 ÷ 1000 = CU 0.009 per g
A 150 g portion therefore costs 150 × 0.009 = CU 1.35.
Accurate measuring is essential. Small differences repeated across many portions can become a large weekly cost variance.
Example Recipe Cost Sheet
The following simplified example costs ten portions of chicken pasta. The figures are examples for practice, not current market prices.
| Ingredient | Recipe quantity | Cost basis | Recipe cost |
|---|---|---|---|
| Chicken | Standard usable quantity for ten portions | Yield-adjusted cost | CU 18.00 |
| Pasta | Quantity for ten portions | Supplier unit cost | CU 4.00 |
| Tomato sauce | Quantity for ten portions | Supplier unit cost | CU 5.00 |
| Vegetables | Quantity for ten portions | Supplier unit cost | CU 3.50 |
| Oil and seasoning | Quantity for ten portions | Supplier unit cost | CU 2.50 |
| Cheese | Quantity for ten portions | Supplier unit cost | CU 4.00 |
| Total | CU 37.00 |
Batch cost = CU 37.00
Standard portion cost = 37.00 ÷ 10 = CU 3.70
A recipe cost sheet should be updated whenever supplier prices, pack sizes, recipe quantities, or yields change materially. A cost sheet that contains old prices can make a profitable-looking item unprofitable in practice.
As-Purchased and Edible-Portion Cost
Many foods lose weight during preparation. Vegetables may be peeled and trimmed. Meat and fish may lose bone, skin, fat, or sinew. Canned products may lose brine. Cooking may also reduce weight through moisture loss. For accurate costing, you must distinguish between the quantity you buy and the quantity you can actually serve.
AP means as purchased. It is the weight, volume, or count before trimming or processing.
EP means edible portion. It is the usable weight, volume, or count after trimming or processing.
Yield percentage formula:
Yield percentage = EP quantity ÷ AP quantity × 100
Example: You purchase 5 kg of carrots for CU 10.00. After peeling and trimming, 4 kg remain usable.
Yield percentage = 4 ÷ 5 × 100 = 80 percent
The AP price is CU 2.00 per kg, but the real cost of usable carrots is:
EP cost per kg = Total AP cost ÷ EP quantity
EP cost per kg = 10.00 ÷ 4 = CU 2.50 per kg
If a recipe needs 12 kg of usable carrots and the tested yield is 80 percent:
AP quantity required = EP quantity ÷ Yield as a decimal
AP quantity required = 12 ÷ 0.80 = 15 kg
This is why a low purchase price does not automatically mean a low usable cost. Yield, quality, trim, and preparation labour all affect the value of a product.
Carrying Out a Yield Test
Use a repeatable workplace method:
- Weighing: Record the original AP weight or volume before processing.
- Food preparation: Trim or process the item exactly as it would be prepared for service.
- Waste measurement: Weigh trim and other loss separately when useful.
- Edible portion: Record the final usable EP quantity.
- Yield percentage: Divide EP by AP and multiply by one hundred.
- Cost analysis: Use the result to calculate the true cost of the usable product.
A yield test should represent normal workplace practice. If one unusually skilled or unusually wasteful worker performs the test, the result may not represent normal production. Repeat tests when product size, grade, supplier, season, or preparation method changes.
Useful trim should not automatically be treated as waste. Safe and appropriate vegetable trim may be used for stock, for example. However, reused trim must be recorded consistently so that the same value is not counted twice.
Portion Cost and Selling Price
A standard portion is the planned amount served to one guest. It can be controlled by weight, volume, count, or a defined utensil. Portion control protects both the guest and the business: guests receive consistent value and the kitchen produces predictable costs.
Standard portion cost formula:
Standard portion cost = Standard recipe cost ÷ Number of standard portions
For the chicken pasta example:
CU 37.00 ÷ 10 = CU 3.70 per portion
One common pricing method uses a target food cost percentage.
Target selling price formula:
Selling price = Standard portion food cost ÷ Target food cost percentage as a decimal
If the standard portion food cost is CU 3.70 and the target food cost is 30 percent:
3.70 ÷ 0.30 = CU 12.33
A business might round or adjust the final menu price after considering competition, customer expectations, taxes, service style, labour, overhead, waste risk, and desired profit. A target percentage is not a universal rule. Different concepts and menu categories can operate successfully with different food cost percentages.
If the final selling price is CU 12.50:
Potential food cost percentage = 3.70 ÷ 12.50 × 100 = 29.6 percent
Contribution from the menu item before other costs = 12.50 − 3.70 = CU 8.80
The CU 8.80 is not pure profit. It must also help pay labour, occupancy, energy, equipment, administration, and other costs.
Actual Food Cost and Inventory
Recipe costing tells you what food should cost if standards are followed. Inventory costing helps show what food was actually used during a period.
A basic period food-cost calculation is:
Cost of food used = Opening inventory + Purchases − Closing inventory
Example:
Opening inventory = CU 4,200
Purchases = CU 7,600
Closing inventory = CU 3,800
Cost of food used = 4,200 + 7,600 − 3,800 = CU 8,000
If food sales for the same period are CU 25,000:
Actual food cost percentage = 8,000 ÷ 25,000 × 100 = 32 percent
The time period must match. Do not divide one week's food usage by one month's sales.
A reliable physical inventory requires consistent counting units, clear item descriptions, current unit prices, and a repeatable shelf-to-sheet order. The closing inventory of one period normally becomes the opening inventory of the next period.
Potential Cost, Actual Cost, and Variance
Potential food cost comes from standard recipes, standard portions, planned yields, and the actual menu sales mix. It answers: What should the food have cost for what we sold?
Actual food cost comes from inventory movement and purchases. It answers: What did the operation actually use?
Variance is the difference between the two. A significant unfavorable variance is a signal to investigate, not proof of one specific problem.
Possible causes include over-portioning, unrecorded waste, spoilage, incorrect receiving, supplier price changes, recipe changes, inaccurate inventory counts, theft, staff meals, complimentary items, transfers between departments, or sales-recording errors.
Example: If potential food cost for a period is CU 7,375 but actual food cost is CU 8,000, the unfavorable variance is CU 625. The percentage-point gap is 32.0 percent actual minus 29.5 percent potential = 2.5 percentage points.
A good workplace investigation checks evidence before blaming people. Compare purchase invoices, waste logs, portion checks, sales reports, recipe versions, stock counts, and transfer records.
Purchasing, Receiving, and Storage
Cost control begins before cooking. A clear purchase specification describes the required product, quality, size, grade, trim, pack, or other measurable characteristics. Good specifications help suppliers quote comparable products and help receivers check whether the delivery matches the order.
When receiving goods, compare the purchase order, delivery note, invoice, quantity, quality, temperature where relevant, and condition of the product. Follow your workplace food-safety rules for rejecting unsafe or unacceptable deliveries.
Useful controls include:
- Purchase order: State exactly what should be delivered.
- Invoice: Record the actual price and quantity charged.
- Receiving: Check quantity, quality, condition, and agreed specification.
- Stock rotation: Use an appropriate rotation system and date labels.
- Par level: Set the amount normally required until the next delivery.
- Inventory: Count and value stock consistently.
Do not buy only on unit price. A cheaper product can cost more after trim loss, poor yield, inconsistent size, spoilage, or extra labour.
Waste, Sustainability, and Cost Control
Every discarded ingredient has a financial value because the business paid for it. Waste can occur during receiving, storage, preparation, cooking, service, or after the guest meal.
A useful waste log records the product, quantity, estimated cost, date, stage of loss, and reason. Categories might include spoilage, overproduction, preparation trim, cooking error, dropped food, returned food, or expired stock. The purpose is to find patterns that can be improved.
Reducing avoidable waste can lower food cost and environmental impact at the same time. Practical actions include improving forecasts, setting realistic par levels, rotating stock correctly, training accurate knife skills, using standard recipes, controlling portions, and designing menus that use ingredients efficiently.
Never reuse food in a way that breaks food-safety rules. Cost saving does not justify unsafe practice.
Menu Decisions and Contribution
Food cost percentage is useful, but it should not be the only measure used to judge a dish. A menu item with a higher food cost percentage may still contribute more money per sale than a cheaper item.
Contribution margin for one menu item:
Contribution margin = Selling price − Standard portion food cost
For the chicken pasta example:
CU 12.50 − CU 3.70 = CU 8.80 contribution margin before other costs
Menu engineering commonly compares both popularity and contribution margin. The traditional four categories are:
- Star: High popularity and high contribution margin.
- Plowhorse: High popularity and lower contribution margin.
- Puzzle: Lower popularity and high contribution margin.
- Dog: Lower popularity and lower contribution margin.
These labels are decision aids, not automatic instructions. A dish may have strategic value because of brand identity, dietary inclusion, seasonality, production balance, or customer expectations. You should combine numerical evidence with operational judgment.
A Practical Food-Costing Workflow
You can use the following sequence for a new or revised menu item:
- Supplier comparison: Confirm current pack size, purchase price, quality, and specification.
- Yield testing: Calculate AP-to-EP yield where trimming or cooking loss matters.
- Standardized recipe: Fix ingredient quantities, method, batch yield, and portion size.
- Recipe costing: Convert all ingredients to matching units and extend each cost.
- Portion cost: Divide the batch cost by the number of standard portions.
- Menu pricing: Test a selling price against the operation's cost and contribution targets.
- Production control: Train staff to follow the recipe and portion standard.
- Inventory control: Count stock and record purchases, waste, transfers, and other adjustments.
- Variance analysis: Compare potential cost with actual cost and investigate material gaps.
- Review: Update costs when prices, recipes, yields, portions, or business conditions change.
Food costing works best as a cycle, not a one-time calculation.
Sources and Further Reading
The calculations and control principles in this course are consistent with open educational hospitality resources and standard food-service management practice.
- Controlling Food Costs, Basic Kitchen and Food Service Management: Standard recipes, yields, portions, and portion costs.
- Yield Testing, Basic Kitchen and Food Service Management: AP and EP quantities, trim loss, and yield percentages.
- Monthly Food Costs, Basic Kitchen and Food Service Management: Opening inventory, purchases, closing inventory, and period food cost.
- Basic Inventory Procedures, Basic Kitchen and Food Service Management: Physical inventory and inventory valuation.
- The Principles of Menu Engineering, Basic Kitchen and Food Service Management: Food cost percentage and menu analysis.
- Recipes and Cost Management, Penn State Pressbooks: Standardized recipes, conversion, and yield formulas.
- Food service, Wikipedia: Background on the food-service industry.
Interactive Tasks
Quiz: Test Your Knowledge
What does EP mean in a yield test? (Edible portion) (!Estimated price) (!Extended purchase) (!Expected profit)
Which formula calculates yield percentage? (Edible portion divided by as purchased quantity) (!Purchase price divided by selling price) (!Closing inventory divided by opening inventory) (!Sales divided by labour cost)
What is the standard portion cost when a batch costs forty currency units and yields ten portions? (Four currency units) (!Two currency units) (!Ten currency units) (!Forty currency units)
Which formula calculates food used for a period? (Opening inventory plus purchases minus closing inventory) (!Closing inventory plus sales minus purchases) (!Sales plus purchases minus labour) (!Opening inventory minus sales plus closing inventory)
What does a standardized recipe help control? (Consistent quantities and yield) (!Supplier bank accounts) (!Customer reservation times) (!Building rent)
What usually happens to usable cost per kilogram when trim loss increases? (Usable cost rises) (!Usable cost disappears) (!Usable cost becomes zero) (!Usable cost always halves)
What is the purpose of a physical inventory? (Count and value stock on hand) (!Write a cooking method) (!Design staff uniforms) (!Measure customer satisfaction)
What is contribution margin for a menu item? (Selling price minus standard portion food cost) (!Selling price plus standard portion food cost) (!Food sales minus opening inventory) (!Purchases plus closing inventory)
What should you do when actual food cost is materially above potential food cost? (Investigate records and operating causes) (!Assume one worker caused the problem) (!Ignore the difference) (!Stop counting inventory)
Why should recipe cost sheets be updated? (Supplier prices and recipe conditions change) (!Recipes never keep the same yield) (!Every guest pays a different tax) (!Portion sizes cannot be measured)
Memory Game
| AP quantity | Amount bought before trimming or processing |
| EP quantity | Amount usable after preparation |
| Yield percentage | Share of purchased quantity that remains usable |
| Standard portion | Agreed amount served to one guest |
| Contribution margin | Selling price remaining after standard portion food cost |
| Closing inventory | Value of stock remaining at the end of a period |
Drag and Drop
| Match the correct terms. | Topic |
|---|---|
| Purchase specification | Describes required product quality and pack characteristics |
| Standard recipe | Defines ingredients quantities method yield and portion |
| Yield test | Measures how much usable product remains after processing |
| Waste log | Records food loss quantity reason and cost |
| Physical inventory | Counts and values stock actually on hand |
...
Crossword Puzzle
| Yield | What term describes the usable proportion remaining after processing? |
| Portion | What term means the controlled amount served to one guest? |
| Inventory | What stock is counted and valued at the end of a costing period? |
| Purchasing | Which function obtains ingredients from suppliers? |
| Variance | What term means the difference between expected and actual cost? |
| Recipe | What document standardizes ingredients quantities method and output? |
LearningApps
Cloze Text
Open-Ended Tasks
Easy
- Unit Cost Practice: Choose three packaged ingredients in your training kitchen, record pack size and price, and calculate a cost per kilogram, litre, or item for each.
- Portion Check: Weigh or measure five portions of the same safe training product, compare them with the standard portion, and explain any variation you find.
- Recipe Cost Card: Create a one-page cost card for a simple four-ingredient recipe and calculate the total batch cost and cost per portion.
- Food Cost Vocabulary Poster: Produce a clear poster or digital image that explains AP quantity, EP quantity, yield, portion cost, inventory, and variance in your own words.
Standard
- Yield Test Project: Carry out a supervised yield test on a suitable ingredient, photograph or document the stages, calculate the yield percentage, and explain how trim changes usable cost.
- Supplier Price Comparison: Compare two realistic supplier offers for the same ingredient, including pack size, specification, expected yield, and usable cost, then recommend one offer with reasons.
- Waste Audit: Record avoidable and unavoidable food waste during a supervised production period, estimate its cost, identify the main causes, and propose two safe reduction measures.
- Workplace Interview: Interview a chef, kitchen manager, purchaser, or catering supervisor about how food costs are controlled, then summarize the controls and one challenge they face.
Advanced
- Food Cost Spreadsheet: Build a spreadsheet that converts supplier units, updates ingredient costs, calculates recipe cost, portion cost, target selling price, and food cost percentage for at least five dishes.
- Actual Versus Potential Cost: Use a realistic case with sales, standard recipe costs, opening inventory, purchases, and closing inventory to calculate potential and actual food cost, then investigate the most plausible causes of the variance.
- Menu Engineering Case: Analyse a small menu using selling price, portion food cost, contribution margin, and popularity, then recommend changes while considering quality, customer expectations, and production constraints.
- Cost Control Improvement Video: Produce a short instructional video for new apprentices showing a complete food-cost control cycle from receiving and storage through recipe production, portioning, waste recording, inventory, and review.
Learning Assessment
- Recipe Costing Assessment: Given current supplier prices and a standardized recipe, calculate unit costs, ingredient extensions, batch cost, and standard portion cost, and explain where conversion errors could occur.
- Yield and Purchasing Assessment: Given AP weight, EP weight, purchase price, and required production quantity, calculate yield percentage, EP unit cost, and the AP quantity that should be ordered.
- Pricing Decision Assessment: Calculate a target selling price from a standard portion cost and target food cost percentage, then justify an adjusted final price using labour, overhead, competition, and customer value.
- Inventory Cost Assessment: Use opening inventory, purchases, closing inventory, and food sales to calculate actual food cost and food cost percentage for a matching period, then judge whether the records are complete enough for a reliable conclusion.
- Variance Investigation Assessment: Compare potential and actual food cost, rank at least three plausible causes of the gap, and propose evidence that would confirm or reject each cause.
- Transfer Assessment: Apply food-costing principles to a new workplace context such as a bakery, school canteen, food truck, hotel buffet, or care catering operation and explain which controls need to be adapted.
Evidence of Learning
Knowledge: You can explain standardized recipes, AP and EP quantities, yield percentage, portion cost, inventory movement, actual food cost, potential food cost, contribution margin, and variance.
Skills: You can convert purchase units, calculate ingredient and recipe costs, perform a supervised yield test, control portions, count inventory, calculate period food cost, and interpret cost differences.
Products: Useful evidence includes a completed recipe cost sheet, yield-test record, waste log, supplier comparison, cost-control spreadsheet, menu analysis, or workplace presentation.
Transfer achievements: You can apply the same principles when supplier prices change, a recipe is scaled, a new menu item is introduced, a portion standard is revised, or a different food-service concept requires another cost structure.
OERs on the Topic
Linked Learning Areas
Food costing connects practical kitchen production with numeracy, purchasing, stock control, sustainability, and business decision-making. It is especially relevant to apprenticeships and vocational programmes in hospitality, catering, culinary arts, bakery production, institutional food service, and restaurant operations.
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