Switching from weekly to daily fresh purchasing can increase your cost price due to higher purchase prices, but reduce it through less waste. Most restaurants get stuck analyzing this trade-off between fresh products and cost efficiency. Here's how to calculate exactly what this switch means for your cost price per dish.
Why daily purchasing appears costlier
Daily purchasing means smaller quantities, and you'll typically pay more per kilo. Suppliers reward bulk orders with discounts, so smaller daily orders carry a premium.
💡 Example:
Salmon purchase comparison:
- Weekly 10 kg: €16.50/kg
- Daily 1.5 kg: €18.00/kg
Difference: €1.50/kg more with daily purchasing
But fresh purchasing slashes waste
The real advantage of daily purchasing? Dramatically less waste. Weekly purchasing often results in 10-20% of fresh products expiring. Daily purchasing drops this to just 2-5%.
- Fewer products losing shelf life
- Superior quality on the plate
- Reduced disposal costs
- More accurate planning capability
💡 Example calculation:
Salmon for 100 portions per week:
- Weekly: 10 kg × €16.50 = €165, minus 15% waste = €140.25 usable
- Daily: 8.5 kg × €18.00 = €153, minus 3% waste = €148.41 usable
Result: €8.16 more costs, but superior quality
The formula for cost price impact
To calculate the actual impact, use this formula:
Real cost price = (Purchase price × Purchase quantity) / (Usable quantity after waste)
⚠️ Note:
Factor in additional time and logistics. Daily ordering requires more labor, but provides greater control.
Impact across different product categories
One of the most common blind spots in kitchen management is assuming all products benefit equally from daily purchasing. They don't:
- Fish and meat: Biggest impact due to short shelf life
- Vegetables: Moderate impact, varies by season
- Dairy: Minimal impact due to longer shelf life
- Dry goods: No difference, stick with weekly purchasing
💡 Real restaurant example:
Bistro with 300 covers per week:
- Weekly purchasing: €1,200 food cost, 12% waste = €1,056 usable
- Daily purchasing: €1,320 food cost, 4% waste = €1,267 usable
Higher costs but 20% more usable product
Hybrid approach as a middle ground
Smart restaurants adopt a hybrid model: daily for fresh products, weekly for shelf-stable items. This captures benefits from both systems.
- Fish and meat: daily
- Fresh vegetables: daily
- Dry goods and canned items: weekly
- Dairy and eggs: 2-3 times per week
How do you calculate the cost price impact? (step by step)
Calculate your current real cost price
Note your current purchase price per kg and estimate your waste percentage. Divide purchase price by (100% - waste%) for real cost price.
Request prices for smaller volumes
Call your supplier and ask for prices on daily deliveries. Note: often 5-15% more expensive per kg due to smaller volumes.
Calculate new real cost price
Use the new purchase price and lower waste (usually 2-5% with daily purchasing). Compare with step 1 for the real impact.
✨ Pro tip
Run a 14-day comparison test on your top 3 fresh dishes, tracking exact waste percentages and purchase prices. You'll have concrete numbers within two weeks to make the right decision.
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
Is daily purchasing always more expensive?
Not necessarily. Due to reduced waste, the actual cost price per usable portion can be lower, despite higher purchase prices per kg.
For which products is daily purchasing most worthwhile?
Especially for fish, meat, and delicate vegetables with short shelf life. For dry products like rice or pasta, it makes no sense.
How do I measure my current waste?
Track what you discard for a week and document why. Weigh everything and calculate the percentage of your total purchases for an accurate picture.
What if my supplier doesn't offer daily deliveries?
Find a local supplier or wholesaler that provides daily service. Often these are specialized fish or meat suppliers.
Does superior quality justify the extra costs?
Usually yes. Guests notice the difference between day-fresh and week-old fish. This can drive higher sales and improved reviews.
How do I factor in the extra labor costs of daily ordering?
Calculate 15-20 minutes daily for ordering and receiving. At €15/hour labor cost, that's roughly €20-25 weekly additional expense to consider.
📚 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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