I'll admit it - I used to ignore small percentage increases from suppliers, thinking they wouldn't hurt my bottom line. But a 15% bump on your priciest ingredients can drain hundreds of euros monthly from your profits. Most operators miss this connection entirely and watch their margins silently erode.
Why your most expensive ingredients have the biggest impact
Your priciest ingredients drive profitability more than anything else. That 15% beef increase hits way harder than the same percentage on herbs or seasonings. Calculate the damage upfront so you can adjust menu pricing or source alternatives before your margins suffer.
💡 Example: Restaurant with 100 covers per day
Top 5 most expensive ingredients with daily usage:
- Beef: 20 portions × €8.00 = €160/day
- Salmon: 15 portions × €6.50 = €97.50/day
- Truffle oil: 30 drops × €0.80 = €24/day
- Parmesan: 40 portions × €1.20 = €48/day
- Premium olive oil: 50ml × €0.60 = €30/day
Total daily usage: €359.50
Calculate the monthly impact
Once you've got daily costs locked down, the monthly math becomes straightforward. Just multiply by your working days - typically 26 to 30 per month depending on your schedule.
💡 Impact calculation:
Daily costs: €359.50
15% increase per day: €359.50 × 0.15 = €53.93 extra per day
Per month (26 working days): €53.93 × 26 = €1,402 extra per month
Annual impact: €1,402 × 12 = €16,824
Check your current food cost percentage
Before bumping menu prices, audit your existing food costs. Running above 35% already? You can't absorb increases without pricing adjustments - period.
⚠️ Note:
A 15% increase in your most expensive ingredients can raise your total food cost by 3-5 percentage points. With revenue of €50,000/month this means €1,500-€2,500 less profit.
Determine your options per ingredient
You've got choices beyond accepting every supplier increase. After managing kitchen operations for nearly a decade, I've learned each ingredient offers different workarounds to minimize financial impact:
- Raise menu price: Pass it on to the guest
- Adjust portion size: 10% smaller portion = 10% less cost
- Alternative ingredient: Different supplier or comparable product
- Remove dish from menu: If it's no longer profitable
- Less frequent as special: Limit to weekends
Calculate the required menu price increase
Want to maintain margins by passing costs along? Calculate exactly how much each dish price needs to rise. No guessing - just math.
💡 Example: Beef dish
Current ingredient costs: €12.00
After 15% beef increase: €12.00 + (€8.00 × 0.15) = €13.20
Extra costs: €1.20
Current menu price: €32.00 incl. VAT
New menu price: €32.00 + €1.20 = €33.20
Monitor the impact after implementation
Track sales volume and margins closely after price changes go live. Sometimes customers are less price-sensitive than expected, especially for modest increases. But you won't know until you measure.
How do you calculate the impact step by step?
Identify your five most expensive ingredients
Go through your recipes and note which ingredients cost the most per portion. Pay attention to both the price per kilo and the quantity you use. Calculate how much of each ingredient you use daily.
Calculate the daily costs per ingredient
Multiply the number of portions you serve per day by the cost per portion of each ingredient. Add all five ingredients together for your total daily costs of these ingredients.
Calculate the 15% increase on a monthly and annual basis
Multiply your daily costs by 0.15 for the extra costs per day. Multiply this by your working days per month (usually 26-30) and then by 12 for the annual impact.
Determine your strategy per ingredient
Decide per ingredient whether you pass on the costs through a higher menu price, reduce the portion, find an alternative, or adjust the dish. Calculate for each option what the impact is on your food cost percentage.
✨ Pro tip
Run this calculation on your top 3 ingredients within 48 hours of any supplier notice. These three items typically account for 70% of your total cost increase impact.
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
Do I always have to pass on cost increases to my guests?
Not necessarily. If your current food cost sits below 30%, you might absorb small increases without menu adjustments. But above 35% food cost, you're risking serious margin erosion by not passing increases along.
How often should I check my ingredient prices?
Review your five most expensive ingredients with suppliers monthly at minimum. Meat, fish and specialty products fluctuate rapidly, especially during seasonal shortages.
What if my supplier suddenly becomes 30% more expensive?
Extreme increases demand immediate alternatives: new suppliers, substitute products, or temporary menu pivots. A 30% jump on expensive ingredients usually can't be fully passed to customers without killing sales.
How do I prevent cost increases from eating into my profit?
Build margin buffers by targeting 28-30% food costs instead of pushing to 35%. Monitor prices monthly and adjust menus seasonally so you can better absorb inevitable fluctuations.
📚 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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