Your accountant tracks purchases and sales but misses the kitchen reality - oversized portions, daily waste, and prep losses that silently drain profits. The numbers on paper show 32% food cost while your actual kitchen operations run closer to 38%. Here's why this gap exists and costs you thousands.
What your accountant does see
Your accountant works with paper trails. Purchase invoices, sales revenue, VAT returns. From these, he calculates your food cost at 32%.
- Total ingredient purchases: €15,000 per month
- Total food revenue: €47,000 per month
- Food cost according to accounting: 32%
Looks solid on paper. But your kitchen tells a different story.
💡 Example:
You buy €200 worth of steak (10 kg at €20/kg). According to your accountant, you sell 40 portions at €32 each.
- Purchase: €200
- Sales: €1,280
- Food cost according to accountant: 15.6%
Reality? You only cut 35 portions from that 10 kg. Your actual food cost hits 17.8%.
What's really happening in the mise en place
Every service brings losses your accountant never sees. Food disappears through waste, portions grow beyond specs, prep goes wrong.
Waste that stays invisible
- Cutting loss: 1 kg salmon yields just 550g of clean fillet
- Spoilage: Vegetables that turn before service
- Returns: Dishes sent back or remade
- Tasting: Chef and staff sampling throughout service
- Leftovers: Partial portions that can't be sold
⚠️ Note:
Think waste is just part of the business? 5% extra waste on €200,000 annual revenue costs €10,000 straight from your pocket.
Portion sizes that creep up
You spec 200g steak portions. Your chef consistently plates 220-250g. Accounting doesn't catch this, but it devours your margins daily.
💡 Example:
You sell 100 steaks weekly. Planned at 200g per portion, but averaging 230g in reality.
- Planned: 20 kg meat per week
- Actual: 23 kg meat per week
- Extra costs: 3 kg × €20 = €60 weekly
Annual damage: €3,120 in costs your accountant can't track.
Why this creates problems
Your accountant reports 32% food cost but can't explain the why. He misses:
- Which dishes drain profitability
- Where waste originates
- Whether portions exceed targets
- Which ingredients cost the most
Without this visibility, you're steering blind. You know something's off but can't pinpoint what.
The consequence: misguided decisions
Incomplete information leads to wrong fixes:
- Raise prices when waste is the real culprit
- Source cheaper ingredients while portions balloon out of control
- Blame kitchen staff when systems are missing
💡 Example:
One restaurant owner watched food costs climb to 38%. His accountant suggested price increases.
But actual kitchen measurement revealed:
- Salmon: 50% cutting loss (normal is 45%)
- Pasta: 180g per portion (planned 150g)
- Vegetables: 15% spoilage from poor planning
Fixing these issues dropped food cost to 31% without touching menu prices.
The solution: track kitchen reality
Control actual costs by measuring kitchen operations. Not monthly summaries - daily tracking.
What you need to monitor
- Real portion weights: Spot-check plates regularly
- Cutting yields per product: How much usable product after prep?
- Daily waste tracking: What hits the trash bin?
- Portions per ingredient unit: How many dishes from 1 kg?
Based on real restaurant P&L data, operators using kitchen management systems see 3-7% food cost improvements within 90 days. You can track this data without spreadsheet headaches and see actual food cost per dish, including waste and true portion sizes.
⚠️ Note:
Start simple. Pick your 3 top-selling dishes and track them for one week. You'll spot the gaps immediately.
How do you get control of your actual costs? (step by step)
Choose 3 top dishes and measure for a week
Pick your 3 best-selling dishes. Measure for a week: how many portions do you make from your purchases? Weigh a portion occasionally. Note what you throw away.
Calculate your actual cost per dish
Add up all costs: ingredients, waste, actual portion sizes. Divide by the number of portions you actually sold.
Compare with your accounting and adjust
Compare your actual cost with what your accountant calculated. Where's the difference? Adjust portions, purchases or prices.
✨ Pro tip
Track your 5 highest-volume dishes for exactly 72 hours every quarter - weighing actual portions and logging all waste. Most accountants miss the 15-20% variance between theoretical and actual food costs happening during mise en place prep.
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
Why doesn't my accountant see that I'm throwing away too much?
Your accountant works with totals: purchases versus sales. Waste gets buried in those numbers but never appears as a separate line item. He sees the result but not the cause.
Can't my POS system track actual kitchen waste?
Your POS only records what you sell, not what gets tossed or how much you actually use per dish. Kitchen waste happens between purchase and sale - a blind spot for most POS systems.
How much waste is normal for a restaurant operation?
Standard waste runs 4-10% of total purchases, depending on your kitchen type and prep complexity. Anything above 10% signals serious profit leakage that needs immediate attention.
📚 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.
Stop losing money in your kitchen
Most restaurants lose 5-15% margin due to invisible mistakes. KitchenNmbrs makes every euro visible — from purchase to plate. Start your free trial and discover where your money is leaking.
Start free trial →