The Case-Size Trap: Where Restaurant Food Costs Slip

Many operators can recite their food cost percentage. Far fewer can say whether last Tuesday’s order was placed at the best available price. That gap is where food cost slips, and it has less to do with what a kitchen buys than with how the purchasing routine is run.

Whether an order goes in by phone, through a distributor’s ordering portal, or through a purchasing system, the challenge is the same: there is rarely time to check whether the price on the screen is competitive before the order is placed. Food cost percentage tells you what happened last month. The purchase decision happens one product and one order at a time.

Pricing volatility and timing

The timing matters. In March, Sysco announced a $29.1 billion agreement to acquire Restaurant Depot, the nation’s largest cash-and-carry wholesaler, a common alternative source for independents. The deal still needs regulatory approval, and Sysco has said it expects to close in early 2027 and does not plan to raise prices at Restaurant Depot. Whatever the outcome, it is a reminder that the supplier landscape shifts, and that a price check shouldn’t depend on any single source.

Three features of foodservice purchasing work against the operator.

• Prices move. Commodity markets, seasonality, freight, and supply disruptions all reach the invoice. Because food is perishable, a kitchen can’t wait out a spike. It buys what it needs, when it needs it, at that week’s price. In its September 2026 Food Price Outlook, USDA’s Economic Research Service forecasts wholesale beef prices up 8.5 percent this year, while farm-level egg prices, which jumped 49.1 percent from July to August alone, are forecast to average 79.2 percent lower for the year.
• Prices vary by account. The price an operator pays can depend on the account, the product specification, contract terms, volume, and current supplier pricing. A published list price is a poor substitute for what the restaurant is actually being charged.
• Packs and specifications differ. The same product is sold in different pack sizes, brands, and descriptions across suppliers, so the case price alone tells you very little.

Add the time it takes to check any of this. Pulling last week’s invoice, finding the same item and comparing the two by hand, for hundreds of products across several suppliers, is work that rarely survives a busy service.

Negotiation and supplier comparison

The traditional answer is to negotiate. A good conversation with a rep can produce a better price, but it is a snapshot of a market that keeps moving. Many operators have won a concession only to see it drift back within weeks. Negotiation still has value. It just can’t be the only defense when what you’re negotiating never stays still. Negotiation is an event. Price monitoring is a process.

The obvious safeguard is to compare suppliers before ordering. In practice, this is where many kitchens give up, because the case price tells you almost nothing when pack sizes differ.

Case-size pitfalls and unit cost

In my work on restaurant purchasing, I most often see pack size hide the real price. The case that looks cheapest is often not the one with the lowest cost per pound. Here is a simple example using shredded mozzarella from three suppliers.

(Illustrative figures, not actual quotes. The three products must be the same spec (same grade, cut, and fat content), or the comparison means nothing.)

Supplier C has the highest case price but the lowest cost per pound: 20 cents below Supplier A and 40 cents, about 10 percent, below Supplier B. At 60 pounds a week, that 40-cent gap is roughly $24 a week, or about $1,250 a year, on a single item. Multiply that across an order guide and the stakes become clear.

The calculation itself isn’t hard. Doing it for every product, every supplier, and every order is what makes it impractical, so operators reorder from the usual supplier and familiarity quietly substitutes for price.

Practical steps for price optimization

The answer is to make price comparison a routine step rather than an occasional project. A few practices make that realistic for an operating kitchen.

• Compare on the smallest unit. Convert every product to a common measure, such as cost per ounce, per pound, or per each, so pack sizes stop distorting the comparison.
• Start with the items that matter most. Rank products by annual spend and start with the top 20 to 30. Because these items are bought in volume, even small unit-price differences compound quickly.
• Compare before the order, not after. Once the food is ordered, the chance to buy it cheaper is gone. The comparison belongs in the ordering step itself.
• Use your own account prices. Where available, export your order guide or pricing data from the distributor’s ordering system. It shows what your restaurant is actually charged, not the list price.
• Assign an owner and a cadence. Someone should be responsible, and the check should happen at every order or on a fixed weekly schedule, because prices keep changing.

Operators don’t optimize price in isolation. The effective cost of a product also reflects quality and spec, yield and waste, delivery fees and minimums, storage space, spoilage, and delivery reliability. The same logic applies to proteins, produce, and dry goods, where yield and trim change what a product really costs once it reaches the plate.

Splitting orders across suppliers can also cost you delivery minimums, surcharges, or volume pricing, so compare the total, not just the line. The chef’s or owner’s judgment should stay in charge.

A spreadsheet can handle the calculation, while purchasing or inventory systems can automate parts of the comparison. The method matters less than having a process that gets used consistently.

Overpaying for food is rarely a failure of effort. Prices shift constantly, vary by account, and are packaged in ways that resist comparison. Operators who normalize unit costs, work from current account pricing, and compare before they order can turn purchasing from a habit into a repeatable cost-control process.

Jim Lange is the founder of Genius Food Purchasing and a business owner with 20+ years of experience. He has spent the last four years focused on restaurant purchasing and food cost control, and writes about both for restaurant operators.