Stock control and waste in a US restaurant, bar and kitchen
A restaurant rarely loses money in one go. It leaks away a pour or a portion at a time. The gap between what the recipe cards say you should have used and what you actually used is variance. This guide shows the formula, a worked bar example, the types of waste and how often to count each area.
How to keep stock under control (short answer)
- Record every goods receipt with quantity, price and lot on the day it arrives.
- Keep a recipe card with weights for every dish, so you know what each sale uses.
- Log waste separately: write-offs, breakage, expiry, cancelled orders and staff meals.
- Count by area at different frequencies: bar weekly, perishables twice a week, dry store monthly.
- Compare actual and theoretical use each month, and investigate any variance above a threshold you set, such as 3%.
Theoretical versus actual use
The formula for actual use is simple: opening stock + purchases − closing stock = actual use.
Theoretical use is each item sold multiplied by its recipe weight or pour. The gap between the two is variance, the loss nobody sees.
Example at the bar: you start the month with 12 bottles of whiskey at 750 mL (9.0 L), receive 6 more (4.5 L), and end with 5 full bottles plus 300 mL (4.05 L). Actual use is 9.0 + 4.5 − 4.05 = 9.45 L.
Count the pours sold: 200 pours of 44 mL (about 1.5 oz) means 8.8 L of theoretical use. The variance is 0.65 L, or about 15 pours. At $12 a pour, that is roughly $180 on one spirit, and the loss adds up across the bar.
Table: types of waste and where to record them
Restaurant losses, with a concrete example and the record that covers each
| Type of loss | Concrete example | Where it is recorded |
|---|---|---|
| Technical loss | Cleaning vegetables, trimming meat | On the recipe card, as a yield measured in your kitchen |
| Expiry | Dairy left unused past its use-by date | A write-off note, with lot and quantity |
| Breakage and damage | A bottle dropped at the bar | A write-off note, at purchase value |
| Cancelled or returned order | A dish sent back to the kitchen | The cancellation reason, noted in your records |
| Staff meal | The team's lunch before opening | Internal use, kept apart from sales |
| Guest comps | A dessert offered after a complaint | Comped item, approved by the manager |
Table: how often to count, by area
How often to count each area in a restaurant with a kitchen and a bar
| Area | Frequency | Why |
|---|---|---|
| Bar (spirits, drinks) | Weekly | High value per unit and high variance |
| Perishables (meat, fish, dairy) | Twice a week | Risk of expiry and of ordering the wrong amount |
| Dry store (flour, pasta, canned goods) | Monthly | Slow turnover, few losses |
| Full count, valued | Monthly, plus a year-end count | The basis for the month's result and for the year-end figure your accountant needs |
What US rules mean for stock
- Inventory counts feed your cost of goods sold for tax purposes. Agree the counting and valuation method with your accountant before year-end.
- Some foods on the FDA Food Traceability List must be traced by lot and supplier. Check with a food safety advisor whether any item on your menu is covered.
- The FDA Food Code sets food safety procedures, including temperature control and date marking, which local health inspectors check.
Common mistakes
- Counting the bar once a month. By the time you spot a variance, you have lost 30 days of evidence.
- Not logging staff meals, so they show up as unexplained loss in the report.
- Counting open bottles as full or empty, instead of estimating what is left.
- Receiving goods without weighing or counting them, then finding a shortfall you cannot trace.
- Comparing only the total stock value instead of use per product. A large variance on one item disappears in the average.
How 4restaurants.net helps
- Ingredient stock levels sit in the same application as the recipe cards and the orders.
- Every dish has its recipe card, and the reports by dish show what sold.
- The reports by day, by dish and by server show sales, so you can compare them with what left the stock.
- Stock levels by ingredient help you decide what still needs buying.
- Supplier, lot and use-by date stay in your own records, next to the goods-receipt paperwork.