How much money are you losing on dishes you think are profitable? Supplier prices shift constantly, seasons change ingredients costs, and yesterday's winners can become today's profit killers. Regular financial reviews prevent these silent profit drains.
Why regular checks are crucial
Most restaurant owners calculate their menu costs once during opening, then never look back. But ingredient prices climb 3-8% annually on average. Skip adjustments for two years and watch your food costs balloon from 30% to 38% — that's serious money walking out the door.
💡 Example:
Restaurant with €400,000 annual revenue:
- Food cost was 30% = €120,000
- After 2 years without adjustment: 38% = €152,000
- Difference: €32,000 less profit per year
Minimum check frequency
Smart operators follow this schedule to protect their margins:
- Monthly: Review your top 5 revenue drivers
- Quarterly: Full menu financial audit
- Seasonal transitions: Extra focus on weather-dependent ingredients
- Supplier changes: Immediate recalculation of affected items
Signs that your menu needs checking
These red flags signal your costs have drifted from reality:
⚠️ Watch out:
Busy dining room but shrinking profits? Your food costs likely climbed while menu prices stayed flat.
- Supplier increases exceed 5%
- Core ingredients spike unexpectedly
- Seasonal shifts (asparagus costs triple in winter)
- Popular dishes hit 35%+ food cost
- Competitors bump their pricing
Practical quarterly approach
Quarterly reviews don't require marathon sessions. Work smart, not hard:
💡 Practical example:
Week 1 of the quarter:
- Monday: Recalculate 5 main courses
- Tuesday: Check 5 appetizers and side dishes
- Wednesday: Review desserts and beverages
- Thursday: Go through lunch menu
Total time investment: 4 hours per quarter
What exactly do you check?
Each review should cover these critical areas:
- Current ingredient costs: What you're actually paying today
- Food cost ratios: Still hitting that 35% target?
- Portion consistency: Kitchen giving proper amounts?
- Waste factors: Yield changes in your products
- Market fluctuations: Seasonal price swings
Digital vs. manual checks
Excel calculations eat time and breed errors. From tracking this across dozens of restaurants, operators using systems like tools save 75% of their calculation time while catching cost creep faster.
💡 Time savings:
Complete menu check:
- Manual in Excel: 6-8 hours
- With digital system: 1-2 hours
- Savings per quarter: 5-6 hours
When to adjust your menu price
Not every cost increase demands immediate price hikes. Use these thresholds:
- Food cost hits 36-38%: Start planning increases
- Food cost exceeds 38%: Price adjustment essential
- Key ingredient jumps 15%: Act immediately
- Multiple ingredients rise 5%: Calculate combined impact
How do you perform a quarterly check? (step by step)
Gather current purchasing prices
Visit your suppliers or check their online portals for current prices of your main ingredients. First focus on your 10 most expensive ingredients — they have the biggest impact on your food cost.
Calculate food cost of your bestsellers
Start with your 5 best-selling dishes. Calculate the new ingredient costs and divide by your selling price excl. VAT. If you're above 35%, you need to take action.
Determine your action plan
With food cost above 35%: raise your menu price, adjust the recipe, or find a cheaper supplier. With food cost above 38%, a price increase is usually unavoidable.
✨ Pro tip
Run full menu calculations every 90 days maximum — any longer and you're gambling with your margins. Set calendar reminders for the 15th of March, June, September, and December.
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
Can't I just recalculate my menu once a year?
That's playing with fire. Ingredient costs can surge 10-15% within twelve months. By the time you notice, your popular dishes have been bleeding money for months.
Which dishes deserve the most attention during reviews?
Focus on your volume sellers and anything featuring expensive proteins like beef or seafood. These items drive your overall food cost more than anything else on the menu.
Should I raise prices immediately when food costs climb?
Not necessarily. Food costs up to 35% are generally manageable. But once you hit 36-38%, start planning adjustments, and anything above 38% demands immediate action.
How do I verify my supplier isn't overcharging?
Compare quotes from 2-3 vendors quarterly for your main ingredients. Price gaps of 10-20% happen, but larger differences signal it's time to switch suppliers.
What if my kitchen staff keeps changing portion sizes?
Inconsistent portions kill your calculations. Weigh random plates during service and retrain staff immediately if portions drift more than 10% from your recipe specs.
Do food trucks need the same calculation frequency as full restaurants?
Actually more often. Food trucks typically have smaller menus with higher ingredient turnover, so price changes hit faster and harder than traditional restaurants.
📚 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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