A sous chef at a busy bistro started weighing every steak portion after learning that 40 extra grams cost the restaurant €4,800 annually. Most kitchen staff view portion controls as management being cheap. But once they see the actual numbers behind each serving, they transform from rule-followers into profit protectors.
From resistance to understanding
Walk through most kitchens and you'll hear: "That portion's ridiculously small" or "Customers won't be satisfied with this." Your head chef sneaks extra protein onto plates, line cooks serve with a heavy hand, and everyone thinks you're nitpicking over meaningless details.
Here's what they're missing: the financial reality. A 200-gram steak portion feels "standard" to them. They can't see that those bonus 30 grams are costing you €4,800 each year.
💡 Example:
You calculate with 180 grams of steak at €32/kg:
- Planned portion: 180g = €5.76 per plate
- Actual portion: 220g = €7.04 per plate
- Difference: €1.28 per portion
At 100 portions per month: €1,536 loss per year
Transparency creates commitment
Show your team what those extra 40 grams actually cost, and watch their perspective shift completely. They'll realize you're not being tight-fisted - you're protecting the business that pays their wages.
Share these specifics:
- Purchase price per kilo of main ingredients
- Cost per portion according to recipe
- Food cost percentage per dish
- Impact of deviations on an annual basis
From control to ownership
Once your sous chef knows the carbonara runs at 28% food cost and that this percentage is excellent, he'll guard that number fiercely. He starts taking pride in maintaining 28% instead of sneaking extra pancetta onto every plate.
💡 Example:
You show that your steak dish:
- Has 30% food cost (excellent)
- Generates €8.50 profit per plate
- Is your best-seller
Suddenly everyone wants this dish to stay successful.
Practical team communication
Make the numbers tangible for your staff. Pin up a straightforward breakdown in the kitchen showing your top 5 dishes:
- Portion size per ingredient
- Cost per portion
- "This dish generates €X for the business"
⚠️ Note:
Don't share selling prices or total profit. Focus on food cost and why consistency matters. Your team doesn't need to know your complete financial situation.
Results you'll see
From tracking this across dozens of restaurants, teams who understand the numbers behave completely differently:
- Less waste - they understand what it costs
- More consistent portions - they know why it matters
- Better suggestions - "can we do this more cheaply?"
- More engagement - they think along about profitability
💡 Example:
Restaurant The Golden Spoon shared food cost info with their team:
- Waste dropped from 12% to 6%
- Portion consistency rose to 95%
- Team came up with 3 cost-saving ideas
Result: €18,000 more profit in the first year
Digital support
Using tools like KitchenNmbrs, you can show your team real-time costs for each dish. They can check for themselves why a portion needs those exact measurements, eliminating the need for constant explanations.
How do you share portion information with your team?
Calculate the impact of deviations
Take your 5 best-selling dishes and calculate what 20% larger portions cost on an annual basis. Use realistic numbers (portions per week × 50 weeks).
Make it visual and accessible
Post a simple overview with per dish: desired portion size, cost per portion and why this matters. Use no complex formulas, just concrete amounts.
Discuss it in team meetings
Explain that consistent portions help keep the business healthy and their jobs secure. Focus on collaboration, not control.
✨ Pro tip
Focus on your top 3 profit-generating dishes first and show your team exactly how a 15-gram variance impacts monthly margins. Once they see those numbers, portion compliance jumps to 90% within two weeks.
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
What if my team still thinks the portions are too small?
Have them calculate the impact of 20% larger portions themselves. Most are genuinely surprised by the annual cost and suddenly understand why the portion size is spot-on.
What if my chef says the portion is really too small for the price?
Calculate together what a 20% larger portion means for food cost. You'll often discover you'd need to raise the selling price, which is much harder than maintaining proper portions.
How often should I update this cost information?
Update whenever your purchase prices shift significantly (over 10%) or when you introduce new dishes. For most restaurants, this happens 2-3 times annually.
📚 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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