Inventory and Food Cost Control

A par level is the quantity of an ingredient you should have on hand at the start of each day or week. It is based on usage (how much you use per day) and lead time (how long it takes to receive from the supplier). For example: if you use 5 pounds of thyme per day and it takes 2 days to receive from the supplier, your par level should be at least 10 pounds (5 days of usage plus a safety buffer). Par levels prevent running out of ingredients during service (a disaster) and prevent over-ordering (which leads to spoilage). Set par levels for every ingredient: audit your inventory weekly and reorder anything below par. Use an inventory software that alerts you when levels drop below par.

Food cost variance is the difference between your expected food cost and your actual food cost. Expected food cost is calculated from recipes and sales: if you sell 10 ribeye steaks (each costing $12 in ingredients) and 20 salads (each costing $3), your expected cost is $180. Actual food cost comes from invoices: the total amount you paid for ingredients that period. Variance = (Actual cost - Expected cost) / Expected cost × 100 percent. A small variance (0 to 3 percent) is normal. A large variance (5 to 10 percent+) indicates a problem: spoilage, waste, theft, recipe drift (recipes changing without documentation), or portion control issues. Investigate large variances and take corrective action (better portion control, waste tracking, theft prevention, recipe standardization).

Implement a waste log: every day, track what was thrown away (spoilage, trimmings, mistakes, customer returns) with quantities and estimated costs. Review the waste log weekly: if you are wasting $200 of produce per week, that is a problem. Common waste sources: over-ordering and spoilage (buy smaller quantities, rotate stock carefully), poor portion control (weigh portions, use portioning utensils), over-prep (prepare to demand, not to capacity), and trimming loss (minimize trim through better knife skills and cutting technique). A 3 percent waste rate (loss due to natural trim and spoilage) is acceptable; over 5 percent indicates a control problem.

Implement a receiving checklist: when ingredients arrive, check against the invoice (verify quantities and prices), inspect quality (check expiration dates, look for damage), weigh items on a scale to verify quantities (suppliers sometimes under-deliver). Sign and date the invoice, then file it. Keep all invoices for accounting. Train one person as the primary receiver; continuity helps catch errors and prevents collusion with suppliers. Use a receiving log to track all incoming products. Reconcile invoices weekly with your POS and accounting system. Spot-check random deliveries: if you catch a supplier short-delivering, they will stop. Proper receiving prevents both honest mistakes and intentional theft.

Food cost creep is the slow increase in actual food costs over time due to small changes that go unnoticed: a slightly larger portion here, a substitution there, a bit more sauce on that dish. Over months, these small changes add up to 5 to 10 percent increase in food costs. Detect creep by: (1) reviewing variance monthly (if variance is growing, creep is happening), (2) auditing portions (measure portions regularly, compare to standard), (3) auditing recipes (taste the dish, ensure it matches the standard recipe), (4) auditing price increases (track vendor prices, are they rising faster than the market?). Prevent creep by standardizing recipes, training cooks on portions, auditing regularly, and being transparent about cost and pricing: if food costs rise, raise menu prices.

Count inventory at regular intervals (monthly is standard). List every ingredient in the kitchen and storage areas. Count the quantity of each item (use a scale for items measured by weight). Record the cost per unit (from your most recent invoice). Calculate the total value of each item (quantity × cost per unit). Add up all items to get the total inventory value. Compare to previous count: a large jump may indicate a problem. Food cost = (Opening inventory + Purchases - Ending inventory) / Revenue × 100 percent. This formula tells you what percentage of your sales goes to ingredient costs. Food cost percentage should be 25 to 40 percent depending on concept (fine dining is 28 to 35 percent; casual is 30 to 40 percent). If your food cost percentage is above target, investigate: check variance, audit portions, review vendor prices.