Ever wonder why your restaurant feels busy but your bank account stays empty? You think you've got a handle on costs - pasta's cheap, steak makes good money. Yet gaps in your estimates quietly drain hundreds of euros monthly.
Why your gut feeling deceives you
You're in your kitchen every day. You see what's happening. You know what's expensive and what's cheap. Makes perfect sense that you'd have a solid grasp on costs.
But your instincts don't account for:
- Small amounts you don't notice (extra butter, a bit more sauce)
- Price increases from suppliers
- Cutting waste and spoilage
- Garnishes and side dishes
💡 Example:
You think your steak runs 28% food cost. But the real calculation:
- Steak 200g: €7.20
- Fries + garnish: €1.80
- Sauce and butter: €0.90
- Vegetables: €1.10
Total: €11.00 on €32.00 = 34.4% food cost
The hidden cost drains
Several things consistently slip past your radar:
1. The little extras
Extra butter on the plate. More sauce than the recipe calls for. An additional slice of tomato. Each instance seems trivial, but they accumulate fast.
💡 Example:
5 grams of extra butter per plate costs you:
- Butter: €12 per kilo = €0.06 per 5 grams
- 100 covers per day, 6 days per week
- Per year: €0.06 × 100 × 6 × 52 = €1,872
2. Cutting waste you overlook
You purchase whole salmon at €18 per kilo. After filleting, only 55% remains usable. Your actual salmon fillet cost becomes €18 ÷ 0.55 = €32.73 per kilo. This represents one of the most common blind spots in kitchen management - forgetting yield calculations entirely.
3. Price increases you don't pass through
Your supplier bumps beef prices by 15%. You keep menu prices unchanged. Every steak sold now eats into margins.
⚠️ Watch out:
Many operators calculate using VAT-inclusive prices. This makes food costs appear lower than reality. Always use VAT-exclusive figures for accurate analysis.
Why precise measurement matters
The gap between 'roughly knowing' and 'knowing exactly' can cost hundreds monthly.
💡 Example:
Restaurant with €40,000 monthly revenue:
- Estimated food cost: 30%
- Actual food cost: 35%
- Difference: 5 percentage points = €2,000 per month
- Annually: €24,000 less profit
How to fix this
No need for complete overhauls. Start focused:
- Calculate your 5 top-selling dishes precisely
- Include everything: main ingredient, garnish, sauce, butter, oil
- Divide by selling price excluding VAT
- Check if you're under 35%
If popular dishes exceed 35%, you've found your profit leak.
Tools like a food cost calculator help you see actual costs for all dishes without manual calculations. You'll know exactly where you stand instead of guessing.
How do you check if your estimate is correct? (step by step)
Choose your 5 best-selling dishes
Start with the dishes you sell most often. If those are good, you've solved 80% of your problem. Check your POS system for the exact sales figures from last month.
Add up all ingredient costs
Don't just calculate the main ingredient, but also garnish, sauce, butter, oil and everything that goes on the plate. Don't forget cutting waste - if you have 45% waste, divide your purchase price by 0.55.
Calculate your actual food cost percentage
Divide your total ingredient costs by your selling price excluding VAT, times 100. With 9% VAT: menu price ÷ 1.09. If you're above 35%, you're probably losing money on that dish.
✨ Pro tip
Track your top 3 dishes' actual costs weekly for 30 days - you'll discover portion creep and missed price increases cost you 2-4% more than you think.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
How can I be so far off from reality?
Small things compound daily. 5 grams of extra butter per plate costs €1,872 annually at 100 covers/day. You don't notice it directly, but it steadily erodes profit margins.
What if my food cost turns out higher than expected?
You have three options: reduce portion size, switch to cheaper ingredients, or raise prices. Often a modest price increase proves the simplest solution that customers readily accept.
Can't I just build in a 5% margin for unforeseen costs?
Many operators try this approach, but you still won't know where money's leaking. Better to know exact dish costs so you can make informed decisions about pricing and portioning.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
Food Standards Agency (FSA) — https://www.food.gov.uk
The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.
Written by
Jeffrey Smit
Founder & CEO of KitchenNmbrs
Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.
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