A chef preps mise en place for 120 covers daily while averaging just 85 guests. You feel prepared, but you're tossing fresh ingredients every night. Here's what excessive prep really costs your bottom line.
What really happens with overproduction
You prep mise en place for 120 covers every day, while you average 85. It feels safe, but it eats into your profit.
💡 Example:
You prep mise en place for every day:
- 120 portions sliced vegetables: €36 per day
- 120 portions sauces: €24 per day
- 120 portions garnish: €18 per day
Total: €78 per day in mise en place
But you only sell 85. Waste: €23 per day = €8,395 per year
The hidden costs of playing it 'safe'
The problem isn't just wasted food. There are more costs you don't see:
- Labor costs: Your chef spends 30% more time on prep
- Refrigeration: More inventory means more cooling needed
- Quality loss: Products that are 2 days old sell worse
- Cashflow: Your money is tied up in products that get thrown away
⚠️ Watch out:
Many kitchens only calculate the purchase price of wasted food. But you also lose your chef's time, energy for cooling, and missed profit.
How big is the real impact?
The total costs of overproduction are much higher than just the purchase price of wasted food.
💡 Full cost calculation:
Restaurant with 85 covers/day, prepping for 120:
- Wasted ingredients: €23/day
- Extra labor (30 min at €25/hour): €12.50/day
- Missed profit on other tasks: €8/day
Total: €43.50/day = €15,878 per year (365 days)
Why does this happen so often?
After managing kitchen operations for nearly a decade, I've seen this pattern repeat endlessly. The fear of having to turn customers away is understandable, but usually exaggerated:
- Uncertainty: You don't know exactly how much you'll sell
- Experience: "We were short last week, so I'll prep more now"
- Perfectionism: You want to always be able to deliver
- No numbers: You don't know what overproduction really costs
The solution: smarter planning based on data
Instead of guessing, you can better forecast how much you need:
- Historical data: Look at averages from the same day in previous weeks
- Weather and events: Bad weather often means fewer guests
- Reservations: Count your fixed reservations and estimate walk-ins
- Buffer: Prep 10-15% extra, not 40%
💡 Practical example:
Average on Tuesday: 78 covers
- Reservations: 45
- Expected walk-ins: 25-35
- Total expected: 70-80
- 15% buffer: prep for 92 covers
Instead of 120. Savings: €18 per day in waste
How tools like KitchenNmbrs help with better planning
With historical sales data, you can plan much more accurately. A food cost calculator shows you patterns by day of the week, so you don't have to guess how much mise en place to prep anymore.
How do you calculate the cost of overproduction?
Measure your actual sales vs. production
Track for 2 weeks how much mise en place you prep and how much you actually sell. Count at the end of each day what gets thrown away.
Calculate the waste costs
Multiply wasted weight by purchase price per kilo. Add up all components: vegetables, sauces, garnish, meat.
Add labor costs on top
Estimate how much extra time your chef spends on overproduction. Multiply by hourly wage. Add this to ingredient costs for total impact.
✨ Pro tip
Track your actual covers versus prepped portions for 14 consecutive days. Most kitchens discover they're consistently over-prepping by 25-35%, which translates to thousands in annual waste.
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 much buffer should I keep for mise en place?
A buffer of 10-15% above your expected sales is usually enough. At 80 expected covers, you prep for 90-95. This covers normal fluctuations without much waste.
What if I still run short and have to turn customers away?
Turning customers away once a week costs less than overproducing by 30% every day. Plus, you can often offer alternatives or quickly make more of popular dishes.
How do I better forecast how much I'll sell?
Look at averages from the same weekday in previous weeks. Pay attention to weather, nearby events, and seasons. Reservations also give a good indication of expected traffic.
Can I save leftover mise en place for the next day?
Some products yes, others no. Sliced vegetables and sauces can often last 1-2 days, but quality declines. Factor this into your cost calculation.
How much does overproduction cost an average restaurant per year?
Restaurants that consistently prep 25-30% too much mise en place often lose €10,000-20,000 per year to waste and extra labor. For smaller establishments, this is €5,000-8,000.
Should I prep different amounts for different mise en place items?
Absolutely. Your herb garnish might need a 20% buffer since it wilts fast, but your protein portions could run with just 10% extra. Track each component separately for better 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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