The silent margin killer nobody warns you about
You negotiate a great deal on wine. You cost your menu. You train your team. Then — three months later — a supplier quietly raises a price by 8%, and nobody notices until the monthly P&L reveals a margin gap you can't explain.
This is how most hospitality businesses lose money: not from one big mistake, but from hundreds of small, untracked price changes.
The spreadsheet trap
Manual cost tracking means someone opens a spreadsheet, types in the new price, and hopefully updates every recipe that uses that ingredient. In practice, it rarely happens. Versions multiply, files get emailed, and soon nobody knows which number is current.
The result? Your menu is priced off stale costs, and the gap between what you think a dish costs and what it actually costs grows wider every week.
What a real spike-alert system looks like
Effective supplier price tracking has three layers:
- Centralised price history — every supplier, every ingredient, one source of truth
- Automatic recalculation — when a price changes, every recipe and margin updates instantly
- Threshold alerts — get notified the moment a price jumps beyond a set percentage
What to do when a spike hits
When a supplier raises a price, you have three options:
- Renegotiate — use your price history as leverage; data is your strongest negotiating tool
- Re-source — compare the new price against alternative suppliers instantly
- Re-price — if the ingredient is critical, update the selling price to protect margin
None of these decisions are possible if you don't know the spike happened.
The principle: A price change that takes three weeks to notice has already cost you three weeks of margin. A price change caught the same day costs you nothing.
Supplier prices will always fluctuate. Your ability to respond quickly is what protects your bottom line.