How much is that sprinkle of pistachios on your dessert actually costing you? You purchase nuts by the kilo but serve them in grams, creating a calculation gap that quietly drains profits. That €24 kilo of walnuts becomes a mystery expense once it hits the plate.
The basic formula for nuts per portion
The math is straightforward: Portion price = (Price per kilo ÷ 1000 grams) × Portion weight in grams
💡 Example:
You buy mixed nuts for €18 per kilo and use 20 grams per salad portion:
- Price per kilo: €18.00
- Price per gram: €18.00 ÷ 1000 = €0.018
- Portion: 20 grams
Cost per portion: €0.018 × 20 = €0.36
Different nuts, different prices
Each nut type carries its own price tag. Peanuts won't break your budget, but pistachios might. Track costs by variety:
- Peanuts: €6-8 per kilo
- Walnuts: €20-28 per kilo
- Almonds: €18-25 per kilo
- Pistachios: €35-45 per kilo
- Pecans: €40-55 per kilo
⚠️ Note:
Nut prices swing wildly based on harvests and seasons. A mistake that costs the average restaurant EUR 200-400 per month is using outdated prices in recipe calculations.
Cutting loss and waste with nuts
Whole nuts come with hidden costs - shells, broken pieces, and unusable bits. Factor these losses into your calculations:
💡 Example of cutting loss:
Walnuts in shell vs. shelled walnuts:
- Walnuts in shell: €15 per kilo
- Yield after shelling: 50%
- True cost: €15 ÷ 0.50 = €30 per kilo usable
Pre-shelled walnuts at €28 per kilo suddenly look like a bargain.
Nuts as garnish vs. main ingredient
Portion sizes vary dramatically depending on how you're using the nuts:
- Salad garnish: 10-15 grams
- In pasta dish: 20-30 grams
- Nut cake: 80-120 grams
- Pesto base: 40-60 grams
💡 Impact on food cost:
Pasta with walnuts (€24 per kilo) - 30 grams per portion:
- Nut costs: €0.024 × 30 = €0.72 per portion
- At 100 portions per week: €72 per week
- Annually: €3,744 on nuts alone
Storage and shelf life
Nuts turn rancid faster than most chefs realize. Bad nuts don't just cost money - they damage your reputation:
- Storage conditions: airtight containers, dark spaces, cool temperatures
- Shelf life: 3-6 months unshelled, 1-3 months shelled
- Quality checks: smell test weekly, discard anything rancid
Digital tracking vs. manual
Managing multiple nut varieties with fluctuating prices manually becomes overwhelming quickly. Digital systems store purchase prices and automatically calculate portion costs per recipe. But even a simple spreadsheet beats guessing.
How do you calculate nut costs per portion?
Note the exact price per kilo
Check your invoice for the price per kilo excl. VAT. Note: different suppliers have different prices for the same product.
Weigh your portion
Use a kitchen scale and weigh exactly how many grams of nuts you use per dish. Do this a few times to determine the average.
Calculate the portion price
Divide the price per kilo by 1000 to get the price per gram. Multiply this by the number of grams per portion for your exact costs.
✨ Pro tip
Weigh your nut portions for two weeks straight, then calculate the average. Most kitchens discover they're using 20-30% more nuts than they think, which explains why food costs seem off.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
Was this article helpful?
Frequently asked questions
Should I include VAT in my nut costs?
No, always calculate with the purchase price excluding VAT. You'll find that on your invoice. You pay VAT to the supplier but get it back from the tax authority.
How often should I update my nut prices?
Check your invoices at least monthly. Nut prices can suddenly rise or fall 20-30% due to seasons and harvests. Quarterly updates are the bare minimum.
Can I calculate different nuts together?
With nut mixes you must calculate each type separately. 50% walnuts at €24/kg + 50% peanuts at €7/kg gives an average of €15.50/kg for that mix.
What if my chef uses 'a handful' of nuts?
Train your team to weigh portions consistently. A handful can be 10 grams or 40 grams. At €25/kg nuts that's a difference of €0.75 per portion - hundreds of euros annually.
Are organic nuts worth the extra cost?
Organic nuts cost 30-50% more. Only choose them if your guests will pay through higher menu prices. Calculate the premium into your food cost first.
Should I buy pre-chopped or whole nuts?
Pre-chopped nuts cost 15-25% more but save labor time and reduce waste. Calculate your kitchen staff's hourly rate against the price difference to decide.
⚠️ EU Regulation 1169/2011 — Allergen Information — https://eur-lex.europa.eu/eli/reg/2011/1169/oj
The allergen information on this page is based on EU Regulation 1169/2011. Recipes and ingredients may vary by supplier. Always verify current allergen information with your supplier and communicate this correctly to your guests. KitchenNmbrs is not liable for allergic reactions.
In the UK, the FSA enforces allergen regulations under the Food Information Regulations 2014.
📚 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.
Optimize your purchasing with data
Know exactly which supplier is most cost-effective and how price changes affect your margins. KitchenNmbrs links purchasing directly to recipe costs. Try it free for 14 days.
Start free trial →