Why restaurant inventory is different from retail
A retail SKU is sold as-is; a restaurant ingredient is consumed as one component of a recipe that gets sold as a finished dish. This means inventory needs to be deducted at the recipe level a burger sold should decrement bun, patty, cheese, and toppings by their recipe quantities, not simply mark "one burger" as sold with no link back to ingredient stock.
Shelf life is also far shorter and more variable than most retail goods, and food cost typically runs a tight percentage of revenue (commonly 28-35%), meaning even small amounts of waste, over-portioning, or shrinkage have an outsized effect on already-thin margins.
Recipe-based ingredient tracking
Set up each menu item with its recipe: the specific ingredients and quantities it consumes. When a dish sells whether recorded through a POS integration or manually the corresponding ingredient quantities should deduct automatically from stock, rather than requiring staff to separately track and enter raw ingredient usage.
This is what makes food cost visible per dish, not just in aggregate: you can see which menu items are actually profitable at current ingredient costs and portion sizes, instead of relying on a single blended cost percentage across the whole menu.
- Define recipes with exact ingredient quantities per dish
- Deduct ingredient stock automatically as dishes sell
- Track food cost percentage per dish, not just overall
Managing perishables with FEFO
Because most restaurant ingredients have a defined shelf life, FEFO (first-expired, first-out) rotation using whichever batch expires soonest first, regardless of when it arrived matters more than the FIFO (first-in, first-out) logic that works fine for non-perishable retail goods. A later-arriving batch with a shorter remaining shelf life should be used before an earlier-arriving batch that still has more time left.
Tracking expiration dates or receipt dates per batch, and flagging items approaching their use-by window, helps kitchen staff prioritize correctly during prep instead of relying on memory or informal "use the older-looking one" habits.
Catching waste through variance analysis
Theoretical food cost what your recipes say should have been used, based on dishes sold rarely matches actual ingredient usage exactly. The gap between the two (variance) reveals over-portioning, prep waste, spoilage, or in some cases theft. Regularly comparing theoretical against actual usage, ingredient by ingredient, surfaces these issues while they are still small and correctable.
A persistent variance on a specific ingredient across multiple periods usually points to a process issue inconsistent portioning at the line, a recipe that no longer matches actual prep practice, or spoilage from poor stock rotation rather than random noise, and is worth investigating specifically rather than absorbing into overall food cost.
Multiple locations and central kitchens
Restaurant groups running more than one location, or a central commissary kitchen supplying several front-of-house sites, need the same per-location tracking and transfer logging that any multi-location business needs plus consistent recipe standardization across sites, so food cost comparisons between locations are actually comparing like for like.
Track ingredients by recipe, not just by box
StockFlow ties ingredient stock to your recipes, so every dish sold deducts the right quantities automatically and food cost stays visible per menu item.
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