I'll admit it - I used to avoid teaching my team about food costs because I thought they'd find it boring or complicated. But after watching them make expensive decisions without realizing the impact, I knew something had to change. Turns out, most chefs actually want to understand the numbers behind their dishes.
Why your team needs to understand this
Cost calculation isn't just a task for the owner. Your chefs make daily decisions that affect your margin: how much meat on the plate, what garnish to add, how thick the sauce. If they understand what things cost, they'll make smarter choices.
💡 Example:
Your chef normally serves 200 grams of steak, but sometimes 250 grams "because it's a nice guest". That seems friendly, but:
- Steak costs €24/kg
- 50 grams extra = €1.20 per plate
- With 30 steaks per week = €1,872 per year
That "kindness" costs you almost €2,000 per year.
Choose the right dish for the demo
Don't start with your most complicated dish. Pick something your team knows well and makes regularly. Ideally a dish with 5-8 ingredients. Too few ingredients and it seems too simple. Too many and you'll lose their attention.
- Pasta carbonara: perfect (pasta, bacon, egg, cream, cheese, herbs)
- Steak with fries: good (meat, potato, butter, herbs, garnish)
- Caesar salad: great (lettuce, dressing, croutons, cheese, chicken)
Make it visual and hands-on
Don't sit behind a computer and show Excel. Do it in the kitchen, with the real ingredients. Grab the products you use and let your team watch while you calculate. From years of working in professional kitchens, I've learned that chefs understand faster when they can touch and see what they're calculating.
💡 Practical demo pasta carbonara:
Grab all ingredients for 1 portion and lay them on the counter:
- 100g pasta: €0.18
- 80g bacon: €1.12
- 1 egg: €0.32
- 50ml cream: €0.24
- 20g parmesan: €0.68
- Herbs/oil: €0.08
Total food cost: €2.62 per portion
Let them calculate themselves
After your demo, have a team member do the same with a different dish. Give them a calculator and have them gather the ingredients. Stand by and help where needed, but let them do the work.
⚠️ Watch out:
Don't forget the "invisible" ingredients: oil for cooking, butter on the plate, salt, pepper, herbs. They seem free, but they cost money too.
Show the impact
Once you have the food cost, calculate the food cost percentage. Take the menu price and show what it means for profit.
- Food cost: €2.62
- Selling price: €16.50 incl. VAT = €15.14 excl. VAT
- Food cost: (€2.62 / €15.14) × 100 = 17.3%
- That's great! Under 30% is good for pasta
Use a system for consistency
After the manual demo you can show how this works in a system. Enter the same recipe and show that you get the same answer. This builds confidence that the technology is correct.
💡 Benefit of a system:
With tools like food cost calculators you don't have to recalculate every time:
- All ingredient prices are already in the system
- Food cost is calculated automatically
- If the purchase price changes, you see the impact immediately
- Your team can check recipes on their phone
Make it part of the routine
One demo isn't enough. Make cost thinking part of your daily routine. Always discuss the food cost of new dishes before you put them on the menu.
- Weekly check of your 5 top-selling dishes
- Season changes: are the prices still current?
- New dishes: calculate first, then test
- Have chefs estimate the food cost before you show them the real number
How do you demonstrate cost calculation to your team?
Choose a familiar dish
Pick a dish your team knows well with 5-8 ingredients. Pasta, steak or salad work well. Avoid complicated dishes for your first demo.
Gather all ingredients physically
Go to the kitchen and grab all ingredients for 1 portion. Lay them on the counter so everyone can see what goes into it. Don't forget herbs and oil.
Calculate the food cost together
Go through each ingredient and calculate the cost per portion. Use a calculator and let your team watch. Add everything up for the total food cost.
Calculate the food cost percentage
Divide the food cost by the selling price (excl. VAT) and multiply by 100. Explain what a good food cost is for this type of dish.
Have a team member do it themselves
Give another team member a new dish and have them go through the same process. Stand by to help, but let them do the work for the experience.
✨ Pro tip
Pick your 3 most popular appetizers and have each team member guess their food cost within 15 minutes. The person closest to the actual cost gets to pick the next training dish.
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 often should I do this with my team?
Start with one thorough 30-minute session. After that, you can briefly discuss the food cost with new dishes or seasonal changes. Make it part of your routine.
What if my team thinks this is too complicated?
Start very simple with a dish of 4-5 ingredients. Show them it's just addition, nothing more. Most chefs understand it within 10 minutes if you show it practically.
Do I need to know all ingredient prices from memory?
No, prepare your demo by looking up the prices. Write them down or put them in your phone. It's about showing the process, not proving you know everything.
How do I respond if the food cost comes out too high?
Use it as learning moments. Show which ingredients are most expensive and discuss options: smaller portions, cheaper alternative, or higher selling price. Don't make a big deal out of it.
Can I do this with an app or Excel?
Always start manually with real ingredients. After that you can show how the same thing works in a system. But the physical demo gives much more understanding than numbers on a screen.
What's the biggest mistake chefs make during cost calculations?
They forget portion control variations and assume every plate gets exactly the same amount. In reality, portions can vary by 20-30% between different cooks, which destroys your cost accuracy.
📚 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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