Think of bulk buying like a warehouse club membership - you pay more upfront but save on every single item. Most restaurant owners calculate portions using small package prices while actually purchasing in bulk quantities. Here's exactly how to factor those bulk savings into your portion calculations.
What are economies of scale in food?
Economies of scale happen when you buy ingredients in bigger quantities. A kilo of rice might cost €8, but a 25-kilo bag runs €120 - that's just €4.80 per kilo. That €3.20 difference hits your food cost directly.
💡 Example:
You make risottos and use 150 grams of rice per portion:
- Small package: €8/kg = €1.20 per portion
- Large bag (25kg): €4.80/kg = €0.72 per portion
Difference: €0.48 per portion - at 200 portions per month = €96 savings
How do you calculate the actual purchase price?
Your real purchase price isn't what's printed on small packages. It's what you actually pay for bulk quantities converted per unit.
Formula: Real price per kilo = Total bulk package cost / Number of kilos
💡 Example calculation:
Garlic for your pastas:
- Single bulb: €0.50 per piece (±50 grams) = €10/kg
- 5kg box: €25 = €5/kg
- Per portion (5 grams): €0.05 vs €0.025
At 500 pastas per month you save €12.50
Which products offer the most economies of scale?
Not every ingredient delivers the same bulk savings. Dry goods and shelf-stable items typically offer the biggest discounts:
- Highest bulk savings: Rice, pasta, flour, spices, olive oil
- Medium savings: Canned goods, frozen vegetables
- Minimal savings: Fresh meat, fish, dairy (spoilage risk)
⚠️ Caution:
Only buy bulk quantities you'll actually consume. A 25kg flour bag that goes bad costs money instead of saving it.
Impact on your food cost percentage
Bulk purchasing can drop your food costs by 2-5 percentage points. This mistake costs the average restaurant EUR 200-400 per month in missed savings from calculating with retail instead of bulk prices.
💡 Impact example:
Pasta carbonara €18.50 (€16.97 excl. VAT):
- Old cost price (small packages): €5.60 = 33% food cost
- New cost price (bulk purchase): €4.20 = 24.7% food cost
Difference: 8.3 percentage point lower food cost
Practical tips for bulk purchasing
- Start with your 5 most-used ingredients
- Check expiration dates before ordering large quantities
- Ask suppliers about bulk discounts - you often get price breaks at certain volumes
- Consider splitting large orders with nearby restaurants
Food cost calculators help you compare old versus new pricing, so you'll see exactly what bulk purchasing saves per dish.
How do you calculate economies of scale? (step by step)
Inventory your current purchase prices
Make a list of your 10 most used ingredients with current prices per kilo. Note: convert to price per kilo if you currently buy per piece or small package.
Request bulk prices from your supplier
Call your supplier and ask for prices on larger packages of the same products. Specifically ask about 5kg, 10kg or 25kg packages where available.
Calculate the difference per portion
Work out how much you save per portion: (old price per gram - new price per gram) × number of grams per portion. Multiply this by your monthly volume for total savings.
✨ Pro tip
Start with your top 3 spice purchases within 30 days - bulk spice savings often exceed 70% compared to small containers. A €2.50 oregano jar versus a €15 kilogram bag delivers immediate cost reductions.
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 I don't have enough storage space for large packages?
Start with compact dry goods like spices, pasta or rice. These deliver the highest bulk savings while taking minimal storage space.
How do I know if a product has a long enough shelf life for bulk purchasing?
Track your monthly usage and compare it to shelf life. If you use 2kg monthly and the product lasts 12 months, ordering 10kg is safe. Always leave a buffer for unexpected slowdowns.
Can I get economies of scale with fresh products too?
Limited opportunities exist with fresh items. Meat and fish suppliers sometimes offer volume discounts, but spoilage risk limits quantities. Focus on dry and frozen products first for guaranteed savings.
📚 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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