Local sourcing often costs more per kilo, but can improve your total margin through less waste and better quality. Many restaurant owners only compare purchase prices, forgetting to factor in transport, minimum orders and shelf life. Here's how to calculate the real costs of local versus wholesale sourcing.
The difference between purchase price and real costs
The price on the invoice doesn't tell the whole story. With local suppliers you often pay more per kilo, but you get other benefits that can save money.
💡 Example:
Tomatoes for your salad:
- Wholesaler: €2.80/kg, minimum 10kg, 30% waste
- Local grower: €4.20/kg, buy per kilo, 10% waste
Real costs per usable kilo:
- Wholesaler: €2.80 / 0.70 = €4.00/kg usable
- Local: €4.20 / 0.90 = €4.67/kg usable
Hidden costs of wholesale purchasing
Wholesale seems cheaper, but often has hidden costs that squeeze your margin:
- Minimum orders: You have to buy more than you need
- Shorter shelf life: Products are often already days in transit
- More waste: Due to large quantities and shorter shelf life
- Transport costs: Often passed on in the price
- Storage costs: More refrigeration space needed for large stocks
⚠️ Watch out:
Many entrepreneurs only calculate with purchase price and forget waste. That gives a distorted picture of your real food cost.
Benefits of local sourcing (that make money)
Local suppliers cost more per kilo, but offer benefits that can improve your margin:
- Longer shelf life: Harvested yesterday versus last week
- Flexible quantities: Buy exactly what you need
- Better quality: Less waste, better presentation
- Story value: Guests pay more for local products
- Less transport: Shorter distance, fresher products
💡 Example calculation:
Steak from local farmer versus wholesaler:
- Local: €28/kg, story on menu, sold for €38 (was €32)
- Wholesaler: €22/kg, standard menu price €32
Per 200g portion:
- Local: €5.60 purchase, €34.86 sales excl. VAT = 16.1% food cost
- Wholesaler: €4.40 purchase, €29.36 sales excl. VAT = 15.0% food cost
Local delivers €5.50 more profit per portion!
The formula for real cost price comparison
Use this formula to fairly compare between suppliers:
Real cost price = (Purchase price per kg × Quantity needed) / (100% - Waste%)
Plus any additional costs such as transport or minimum orders you don't use. Based on real restaurant P&L data, this formula reveals the true cost difference that many operators miss.
When local really becomes more expensive
Local sourcing isn't always the best choice. It depends on your concept and target audience:
- Budget concepts: Guests aren't willing to pay more for local
- High volumes: At 200+ covers per day, every cent counts
- Limited storage space: Frequent small deliveries cost time
- Standard ingredients: For flour, oil, salt, origin matters little
💡 Practical example:
Pizzeria with 150 pizzas per day:
- Local mozzarella: €12/kg (saves €0.20 per pizza through less waste)
- Wholesaler mozzarella: €8/kg (standard quality)
Per year: 150 × 6 × 52 × €0.20 = €9,360 extra profit through less waste, despite higher purchase price.
How do you compare local sourcing with wholesale? (step by step)
Calculate real cost price including waste
Divide the purchase price by the usable percentage. With 20% waste you have 80% left, so divide by 0.80. This gives you the real costs per usable kilo.
Add up all hidden costs
Factor in minimum orders, transport, extra storage costs and time lost through frequent deliveries. Divide these costs by the number of kilos you actually use.
Determine if you can charge more for local products
Test whether guests are willing to pay 10-15% more for local ingredients. Adjust your menu price and calculate whether the higher margin compensates for the extra purchase costs.
✨ Pro tip
Compare your top 3 protein costs between local and wholesale suppliers over 6 weeks, tracking waste percentages daily. The real margin difference often surprises restaurant owners who only looked at invoice prices.
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 more can local sourcing cost to still be profitable?
If local is 30% more expensive but your waste drops by 15%, you break even. If you can also charge 10% more on your menu price, you earn more overall.
Which products are most suitable for local sourcing?
Fresh products with short shelf life such as vegetables, herbs, meat and dairy. These benefit most from short transport time and fresh harvest.
How do I calculate the difference in waste between suppliers?
Track for 2 weeks how much you throw away from each product. Divide this by your total purchase of that product. Compare the percentages between suppliers.
Can I combine local and wholesale sourcing?
Yes, many restaurants do this. Fresh products locally, durable products like oil, flour and preserves via wholesaler for the best price-quality ratio.
How do I communicate local sourcing to my guests?
Mention it on your menu next to specific dishes. 'Steak from Green Meadow Farm' or 'Seasonal vegetables from local growers' justifies a higher price.
What about seasonal availability with local suppliers?
Local suppliers can't provide everything year-round, so you'll need flexible menus. Build relationships with 3-4 local farms to spread risk and maintain supply consistency.
📚 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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