Calculating sauce costs is like choosing between buying groceries daily or weekly. Daily prep means more trips to the kitchen but nothing goes bad. Weekly batches save time but risk spoilage eating into profits.
Cost price of daily fresh sauce
Daily prep keeps portions exact and waste minimal. You make precisely what you need, nothing more.
? Example daily hollandaise:
For 40 portions per day:
- Butter: 800g × €12/kg = €9.60
- Egg yolks: 12 pieces × €0.18 = €2.16
- Lemon, spices: €1.20
- Labor: 20 min × €18/hour = €6.00
Total: €18.96 for 40 portions = €0.47 per portion
Benefits of daily preparation:
- Always fresh taste
- No waste from spoilage
- Flexible response to busy periods
Cost price of weekly sauce
Weekly batches mean larger quantities. You save labor hours but face higher spoilage risk.
? Example weekly tomato sauce:
For 280 portions per week (40 × 7 days):
- Tomatoes: 14kg × €3.20/kg = €44.80
- Onion, garlic, spices: €8.40
- Labor: 90 min × €18/hour = €27.00
- Waste (10%): €8.02
Total: €88.22 for 280 portions = €0.32 per portion
⚠️ Note:
Always factor in 5-15% waste for weekly sauces. Spoilage, flavor changes and overproduction add up fast.
Calculate labor time correctly
Labor creates the biggest cost gap between methods. Daily prep costs more total hours but can cost less per portion with smart planning.
Formula for labor cost per portion:
Labor cost = (Preparation time × Hourly wage) / Number of portions
- Daily: 20 min for 40 portions = 0.5 min per portion
- Weekly: 90 min for 280 portions = 0.32 min per portion
Estimate waste percentage
Sauce shelf life varies dramatically. This directly impacts your waste calculations. From analyzing actual purchasing data across different restaurant types, cream-based sauces consistently show higher waste rates than tomato or oil-based varieties.
? Common waste percentages:
- Mayonnaise-based: 5-8%
- Tomato sauces: 8-12%
- Cream sauces: 10-15%
- Pestos: 5-8%
- Jus/stock: 3-6%
Which method is cheaper?
The answer depends on sauce type and sales volume. Run the numbers for your specific situation.
Daily wins when:
- Sauces spoil quickly
- Daily volumes fluctuate
- Premium sauces where freshness matters most
Weekly wins when:
- Volumes stay consistent
- Sauces keep well
- Labor costs run high
⚠️ Note:
Don't forget storage and cooling costs. Large batches need more fridge space and energy.
Related articles
How do you calculate the cost price per preparation frequency?
Determine your weekly portion count
Count how many portions of sauce you sell on average per week. Check this over at least 4 weeks for a reliable average. Calculate with your lowest week to prevent waste.
Calculate ingredient costs for both methods
Make a cost calculation for daily preparation (smaller batch) and weekly preparation (large batch). Note: larger purchases can be cheaper per kilo.
Include labor time and waste
For daily method: 7× preparation time. For weekly method: 1× preparation time + 5-15% waste. Compare the total cost price per portion.
✨ Pro tip
Track both methods for your top 3 sauces over 30 days to see real cost differences. You'll often find the gap is just 2-5 cents per portion, making quality and consistency the deciding factors.
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
Should I include labor time in the cost price of sauces?
How do I prevent waste with weekly sauce preparation?
Can I freeze sauces to prevent waste?
How do I factor cooling costs into my sauce cost price?
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
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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