Ever wondered how many restaurants lose money on their "successful" new dishes? Most chefs estimate ingredient costs, but these guesses often miss the mark by 20-30%. Here's how to calculate and manage those financial risks before your new dish goes live.
Why unknown purchase prices are dangerous
Your chef creates an amazing new dish that guests will absolutely love. But what happens if those ingredients cost more than you thought? Every single portion could drain your profits.
⚠️ Watch out:
A difference of €2 per portion at 100 portions per month costs you €2,400 per year. With popular dishes, this can be even higher.
Build a worst-case scenario calculation
Begin by researching the highest possible ingredient costs. Contact multiple suppliers for each ingredient and use the most expensive quotes in your calculations. This approach gives you the maximum cost baseline.
? Worst-case example:
New fish dish with uncertain salmon pricing:
- Salmon (estimated): €28/kg (most expensive supplier)
- Vegetables: €3.50 per portion
- Sauce and garnish: €2.20 per portion
- Portion size: 180g salmon
Worst-case cost price: €28 × 0.18 + €3.50 + €2.20 = €10.74 per portion
Calculate your break-even selling price
Once you've got that worst-case cost, determine what you'll need to charge to stay profitable. Apply your target food cost percentage to find the minimum selling price that protects your margins.
Formula: Minimum selling price excl. VAT = Cost price / (Food cost % / 100)
? Break-even example:
Worst-case cost price: €10.74
Target food cost: 32%
- Minimum price excl. VAT: €10.74 / 0.32 = €33.56
- Minimum price incl. 9% VAT: €33.56 × 1.09 = €36.58
You need to charge at least €36.58 to avoid losses in the worst-case scenario.
Test with a limited launch
Run a small-scale test to uncover the real costs. Purchase ingredients for 20-30 portions and track everything - this reveals actual prices, true portion sizes, and unexpected waste from prep work. I've seen restaurants avoid a mistake that costs the average restaurant EUR 200-400 per month simply by doing this test first.
- Buy ingredients for a small batch only
- Document all actual purchase prices
- Measure the exact portion size your chef uses
- Track actual waste during fish or meat trimming
Set a maximum loss budget
Decide upfront how much you're willing to lose during testing. This boundary keeps your risk contained and gives you a clear exit point if things go wrong.
? Risk budget example:
Test period: 2 weeks, expected 50 portions
- Maximum loss per portion: €3
- Total risk budget: 50 × €3 = €150
If you lose more than €150, you stop the test and adjust the recipe or price.
Adjust based on actual figures
After testing, compare your real numbers against that worst-case scenario. Most times costs are lower than expected, but sometimes you'll need to make changes fast.
If costs exceed your projections, you've got three moves:
- Raise the selling price to protect margins
- Modify the recipe using cheaper ingredients
- Reduce portion size to cut costs
A food cost calculator like KitchenNmbrs can run these calculations automatically and test different scenarios before launch.
How do you calculate the risks of a new dish?
Make a worst-case cost price
Find the highest purchase prices for all ingredients and calculate with those. Add up all costs: main ingredient, vegetables, sauces, garnish, and oil. This gives you the maximum cost price per portion.
Calculate your break-even selling price
Divide the worst-case cost price by your desired food cost percentage. Multiply by 1.09 for the price including VAT. This is the minimum price to avoid losses.
Test with limited launch
Buy ingredients for 20-30 portions and prepare the dish. Record all actual costs and measure the exact portion size. Set a maximum loss budget for the test period.
Compare and adjust
Compare the actual costs with your worst-case scenario. Adjust the selling price, recipe, or portion size based on real figures. Stop the test if losses exceed your budget.
✨ Pro tip
Test your 3 most expensive ingredients separately for 48 hours before full launch. This quick check catches 80% of cost surprises before they hit your bottom line.
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 many portions should I test before launching a dish?
What if ingredient costs exceed my worst-case scenario?
How large should my risk budget be for testing new dishes?
Should I factor seasonal ingredient prices into my risk analysis?
Can I launch a new dish as a special to limit risks?
How do I handle dishes with highly volatile ingredient prices?
What's the biggest pricing mistake restaurants make with new dishes?
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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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