Restaurants that monitor food costs weekly lose an average of 3.2% more profit than those checking daily. Your margins erode silently while you focus on service, staff, and customers. Here's exactly how often to check and which red flags demand immediate action.
Daily check: only your top sellers
Monitor the food cost of your 3 best-selling dishes every day. These generate 60-70% of your revenue, so any margin slip here hits hardest.
? Example daily check:
Restaurant with 3 top sellers:
- Steak: yesterday 32% food cost (normally 30%)
- Salmon: yesterday 28% food cost (stable)
- Pasta: yesterday 25% food cost (stable)
Action: Check why steak became more expensive
This takes 5 minutes daily but prevents weeks of selling at razor-thin margins.
Weekly check: your entire menu
Each week, review all dishes. Suppliers adjust pricing, seasonal ingredients spike, and new additions need validation.
- All main courses: Food cost between 28-35%?
- Appetizers: Often higher food cost allowed (35-40%)
- Desserts: Low food cost (15-25%) compensates for other dishes
- Daily specials: Extra attention, often experimental
⚠️ Watch out:
Don't skip dishes you rarely sell. Ingredient prices can spike unnoticed because you use them infrequently.
Monthly check: trends and averages
Monthly reviews reveal the bigger picture. Which direction is your total food cost heading? Where are the most significant shifts occurring?
? Example monthly overview:
Food cost development:
- January: 31.2% average
- February: 32.8% average
- March: 33.5% average
Trend: Rising food cost, action needed
Any upward trend exceeding 2 percentage points demands action: price increases or recipe modifications.
Check immediately in these situations
Certain scenarios require instant monitoring, regardless of your regular schedule:
- Supplier raises prices: Immediately review all dishes using those ingredients
- Seasonal change: Vegetables and fish can jump 30-50% overnight
- New chef: Different portioning habits can destroy your food cost calculations
- Complaints about portions: Too small portions? Your food cost target might be unrealistic
- Declining profit with stable revenue: Food cost creep is usually the culprit
What do you do about deviations?
From tracking this across dozens of restaurants, you have three main options for high food costs:
- Raise the price: Most straightforward, but market conditions matter
- Adjust the recipe: Less expensive ingredients, controlled portions
- Switch suppliers: Sometimes 10-15% savings are available
? Example price adjustment:
Steak food cost rose from 30% to 35%:
- Current price: €32.00 incl. VAT
- New ingredient costs: €10.30
- For 30% food cost: €10.30 / 0.30 = €34.33 excl. VAT
- New menu price: €34.33 × 1.09 = €37.42
Price increase: €5.42 per portion
Digital vs. manual checking
Manual tracking with Excel or paper consumes 2-3 hours weekly for 20 dishes. Plus, calculation errors are inevitable.
Digital systems show current food costs per dish instantly. Update ingredient prices once, and every dish recalculates automatically.
⚠️ Watch out:
Even with software, you must update ingredient prices manually. This doesn't happen automatically.
How do you set up a checking schedule?
Identify your top sellers
Make a list of your 3-5 best-selling dishes. You check these daily because they influence your profit the most.
Set warning limits
Determine the maximum food cost per dish. For example: main courses max 35%, appetizers max 40%. Take immediate action if exceeded.
Create a weekly overview
Schedule 30 minutes each week to check all dishes. Also check whether suppliers have adjusted prices and update your ingredient costs.
✨ Pro tip
Set price alerts at 2% above your target food cost threshold. This gives you a 48-hour window to investigate before margins get seriously damaged.
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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
Do I really have to check every day?
What if my food cost suddenly spikes?
How do I catch supplier price increases early?
What if every dish shows excessive food cost?
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
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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