Ordering too late with your supplier leads to emergency purchases at higher prices and waste of expensive alternatives. Many restaurants lose 2-5% of their revenue this way without realizing it. Here's exactly how to calculate what these waste costs are costing you and how to prevent them.
What are waste costs from ordering too late?
Ordering too late from your supplier creates two types of costs that eat into your profit:
- Emergency purchase costs: You buy more expensively from the wholesaler or supermarket
- Waste costs: You buy too much of expensive alternatives that you can't use up
- Lost sales: Items you can't serve because you don't have them
Calculate your emergency purchase costs
The formula for emergency purchase costs is straightforward but painful:
Emergency purchase costs = (Emergency price - Normal price) × Quantity
💡 Example:
You forgot to order salmon for the weekend. Now you buy from the wholesaler:
- Normal supplier price: €18.50/kg
- Emergency wholesaler price: €28.00/kg
- Required quantity: 5 kg
Extra costs: (€28.00 - €18.50) × 5 = €47.50
Calculate waste from expensive alternatives
Emergency purchases often mean buying more than needed. That surplus usually ends up in the trash:
Waste costs = Surplus × Emergency price × Waste percentage
💡 Example:
You only use 4 kg of that expensive salmon, 1 kg remains:
- Surplus: 1 kg
- Emergency price: €28.00/kg
- Waste percentage: 80% (doesn't get sold)
Waste costs: 1 × €28.00 × 0.80 = €22.40
Add up the total damage
The real costs of ordering too late are the sum of all extra expenses. Most kitchen managers discover too late that these seemingly small incidents add up to thousands annually:
- Emergency purchase surcharges
- Waste from surplus
- Lost sales (if you still run short)
- Extra time and stress
💡 Total example:
One weekend of ordering salmon too late costs you:
- Extra purchase costs: €47.50
- Waste from surplus: €22.40
- Lost sales 3 dishes: €45.00
Total damage: €114.90 for one weekend
⚠️ Watch out:
These costs add up quickly. If this happens once per month, you lose €1,379 per year in avoidable waste costs.
Calculate the annual impact
To know what sloppy ordering really costs you, calculate it annually:
Annual waste costs = Average costs per incident × Number of incidents per year
💡 Annual example:
Restaurant with regular emergency purchases:
- Average costs per incident: €85
- Number of times per year: 18×
- Extra time spent: 4 hours per incident
Total loss: €1,530 + 72 hours of stress per year
Prevent waste costs with planning
The most effective way to prevent waste costs is an ordering system where you're never caught off guard:
- Fixed order day: Order every Tuesday for Thursday delivery
- Minimum inventory: Never drop below 2 days of stock
- Backup supplier: For emergencies at better prices than the wholesaler
- Digital reminders: Automatic reminders to place orders
With inventory tracking systems you can monitor stock levels and set up automatic order reminders, so you're never caught off guard by empty shelves again.
How do you calculate waste costs? (step by step)
Collect all emergency purchase receipts
Keep all receipts from emergency purchases at wholesalers or supermarkets from the past 3 months. Compare the prices with your normal supplier to see the difference per product.
Calculate the surcharges per incident
Add up per emergency purchase: (emergency price - normal price) × quantity. Add the waste from products you couldn't use.
Calculate it on an annual basis
Multiply the average costs per incident by the number of times this happens per year. This shows you the total leak in your profit from poor planning.
✨ Pro tip
Track your emergency purchases for 8 weeks - most restaurants discover they're spending €200-400 monthly on avoidable rush orders. That's enough to justify any decent inventory system.
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 does emergency purchasing typically cost extra per product?
Emergency purchases from wholesalers or supermarkets usually cost 30-60% more than your normal supplier price. For fresh products like fish and meat this can reach 80% surcharges.
How often does emergency purchasing happen in an average restaurant?
Restaurants without tight ordering systems do emergency purchases 1-2 times per month on average. This costs them €1,000-3,000 per year in avoidable extra costs.
Do I need to calculate waste from emergency purchases differently?
Yes, waste from expensive emergency purchases weighs heavier. Calculate using the emergency price, not your normal purchase price. A kilo of wasted emergency salmon costs €28 instead of €18.50.
Can I deduct emergency purchase costs from taxes?
Emergency purchase costs are regular business expenses and therefore deductible. But they remain avoidable costs that reduce your profit. Better to prevent them entirely.
How do I prevent forgetting to order?
Set fixed order days in your calendar and use systems that alert you when inventory runs low. Digital systems can send automatic reminders.
Should I factor in staff overtime when calculating emergency purchase costs?
Absolutely. Emergency runs often require staff overtime or pulling managers from other tasks. Add €25-40 per hour to your true emergency cost calculations.
What's the difference between supplier delays and ordering too late?
Supplier delays are external factors beyond your control, while ordering too late is internal planning failure. Only the latter creates preventable waste costs through poor inventory management.
📚 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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