Case Study 1: When the Ingredient Moves

Avian influenza, the beef cycle, and what a cost card is actually for

Background

Every operator eventually discovers that the most important number on their cost card is one they do not control.

Two commodity events in recent American foodservice make the point better than any argument. Both are matters of public record, both were widely reported, and both put thousands of restaurants through the exact decision §11.8 describes.

Highly pathogenic avian influenza (HPAI). Outbreaks in United States commercial poultry flocks — a major wave in 2014–2015, and a further sustained wave beginning in 2022 — resulted in the culling of very large numbers of birds, primarily egg-laying hens. Because a laying flock takes months to rebuild, supply cannot respond quickly, and egg prices rose sharply and repeatedly, with the most severe spikes in the winter of 2022–2023 and again in early 2025. The United States Department of Agriculture publishes flock, production, and price data on this throughout; it is one of the best-documented commodity shocks available to a restaurant operator.

The cattle cycle. Cattle production runs on a multi-year biological clock. Drought and high feed costs through the early 2020s pushed ranchers to liquidate herds; herd liquidation raises supply and depresses prices in the short run and then produces a shortage years later, because a cow that was sold is not a cow that had a calf. By 2024 and 2025 the United States cattle herd had fallen to its smallest in decades and beef prices reached record levels. Again, USDA cattle inventory reports are the public source.

Neither event was caused by anything a restaurant did. Neither could be waited out on a restaurant's timescale. And in both cases the operators who came through best were the ones who already knew, to the cent, what the affected ingredients cost them per plate.

The operating issue

Consider what a poultry or beef shock actually does to a restaurant, in the terms of this chapter.

The invoice price moves. That is one number. But the plate is what you sell, and the movement from one to the other runs through the whole apparatus we have just built: the portion spec, the yield, the by-product credits, the waste allowance, and the menu price. An operator with cost cards can answer, that afternoon, four questions:

1. Which items are affected, and by how much per plate?
2. What does that do to my blended food cost at current mix?
3. What is the price that restores my contribution margin, as opposed to my percentage?
4. Which items should I promote, and which should I quietly let sell less?

An operator without cost cards can answer none of them, and will discover the damage six to eleven weeks later on a monthly statement — with no way to attribute it, because the same statement contains a dozen other moving parts.

The most visible public response came from Waffle House, which in early 2025 added a temporary per-egg surcharge to its checks — widely reported at fifty cents an egg — explicitly attributing it to egg prices, and then removed it later in the year as prices came down. Whatever one thinks of the tactic, it demonstrates something worth noticing: the company could state the pass-through per unit because it knew the cost per unit. A surcharge of a specific size, on a specific item, announced and then withdrawn, is a costing decision made in public.

Across the industry, four responses were visible in this period, and they map exactly onto §11.8's four options:

What it shows

A cost card is not paperwork. It is the instrument you use during a shock.

Notice what the four questions above have in common: every one of them requires a per-plate number, and none of them can be answered from an invoice, a percentage, or a monthly P&L. The value of the work in §11.2 through §11.4 is almost entirely realized in weeks like these.

The percentage misleads exactly when the stakes are highest. An operator who chases their food cost percentage back to target during a commodity spike will overshoot on price, as §11.8's option (c) demonstrated: restoring the ratio required a \$3 price move to offset an 85-cent cost move. During a period when guests are already sensitive to prices — which is precisely when commodity costs are in the news — a percentage-driven price increase is close to the worst available instrument.

Surcharges are a disclosure question as well as a pricing question. Mandatory fees and surcharges are regulated at the state and local level in the United States, and the regulation has been actively changing: California, for example, enacted a broad price-disclosure law that took effect in 2024 and then amended it specifically to address restaurant service charges after industry objection. Requirements vary enormously by jurisdiction and continue to change; any operator considering a surcharge must verify current local rules and, for anything consequential, take advice.

And the honest limit of all four responses: none of them creates margin. A commodity shock removes real money from the business. The cost card does not prevent that. What it does is let you choose where the money comes from, deliberately, in week one, instead of finding out in week eleven that it came from everywhere.

Outcome

Both shocks eased, on their own schedules. Egg prices came down as flocks rebuilt, and the Waffle House surcharge was withdrawn. Cattle supply responds far more slowly, and beef costs stayed elevated much longer, which is itself the lesson: the two shocks required different answers because they had different durations, and duration is the variable most operators never think about.

A useful rule falls out of that. Before choosing a response, ask how long the elevated price is likely to last — and be honest that you often cannot know:

• Weeks to a few months (weather event, a single supplier's problem): absorb it, or substitute temporarily. Do not touch the menu.
• A season (a crop, a disease event with a known recovery path): re-spec, promote around it, or use a disclosed temporary surcharge.
• Years, structural (a biological cycle, a permanent change in feed or land economics): reprice, or change the item. Absorbing a structural increase is how a restaurant bleeds to death politely.

Lesson

You cannot control the ingredient price. You can control how quickly you know, and how precisely you respond.

The operators who handled these shocks well were not the ones with better suppliers or better luck. They were the ones who could open a binder, find the affected cards, recompute a plate cost in ten minutes, and make a specific decision about a specific item — rather than a vague, panicky, across- the-board one.

That is what the tedious work in this chapter buys. Not a lower food cost. A faster, narrower, more defensible decision when something outside your control moves.

Discussion questions

1. The four responses in the table are not mutually exclusive. Construct a scenario in which an operator should use three of them simultaneously, and explain which items get which treatment.

2. A surcharge is transparent — the guest is told exactly what is happening and why — while a price increase hides the cause inside the number. Argue that transparency is the better choice, then argue that it is worse. Which do you actually believe, and does your answer change if the restaurant is a diner rather than a fine-dining room?

3. The chapter argues that chasing the food cost percentage back to target during a cost shock systematically overshoots on price. Work through the arithmetic with your own numbers and state the general rule in one sentence.

4. "Duration is the variable most operators never think about." How would you actually estimate the likely duration of a commodity shock, given that you are a restaurant operator and not a commodities analyst? Name three sources you could realistically use.

5. Waffle House could state a surcharge per egg because it knew its cost per egg. What would your restaurant be able to state with the same precision today? If the answer is "nothing," what is the shortest path to changing that?

6. An operator absorbs a structural cost increase for eighteen months rather than raising prices, because they are proud that they have not raised prices. Describe, in terms of Chapter 1's four failure mechanisms, exactly how that decision ends.