Picture this: a supplier walks into your kitchen with samples and a smile. The products taste great, the price sounds reasonable, and you're thinking about making the switch. But here's what usually happens next - you never calculate the real cost once those ingredients hit your prep station.
Trial deliveries are pure marketing
That sample delivery isn't reality - it's a sales pitch wrapped in packaging. You're getting their A-grade products, perfect portions, and often pricing that won't last. What you're not seeing:
- Real pricing after the honeymoon period ends
- How products perform under kitchen pressure
- Actual trim waste during prep
- Quality variations between deliveries
💡 Example:
New supplier offers salmon at €16/kg versus your current €18/kg.
- New supplier: whole fish with 50% trim loss
- Current supplier: pre-filleted with just 10% waste
Real cost new supplier: €16 ÷ 0.50 = €32/kg usable fish
Real cost current supplier: €18 ÷ 0.90 = €20/kg usable fish
That 'deal' just cost you 60% more!
The numbers you forget to crunch
Taste tests don't tell the whole story. From tracking this across dozens of restaurants, I've seen operators miss these critical factors:
- Prep labor: Extra cutting and cleaning time
- Waste percentages: What actually hits the trash
- Storage life: How long before it goes bad
- Batch consistency: Quality swings between orders
💡 Example: Steak comparison
Option A: €24/kg pre-cut steaks
Option B: €20/kg whole loin you break down
- Option A: ready to cook, 5% loss = €25.26/kg
- Option B: 20 minutes butchering, 15% loss = €23.53/kg
- Labor for breakdown: €8/hour × 0.33 hour = €2.64
Option B total: €26.17/kg - actually more expensive!
Post-trial reality check
Switch suppliers and watch these costs appear:
- Minimum order bumps that weren't mentioned
- Delivery fees that were waived initially
- Price hikes after month two
- Quality drops once you're locked in
⚠️ Watch out:
Price increases typically hit after 1-3 months. Demand final pricing upfront and get it documented.
How bad math kills your margins
Poor supplier calculations can drain hundreds monthly without you realizing:
💡 Calculation example:
Monthly volume: 200 steaks. Wrong supplier choice costs €2 extra per steak.
- Monthly overage: 200 × €2 = €400
- Annual impact: €400 × 12 = €4,800
Nearly €5,000 yearly loss on one ingredient!
Smart trial testing method
Turn every sample into real data:
- Weigh products before and after processing
- Time your prep work
- Test storage life with held samples
- Calculate true cost per finished portion
- Compare final numbers against current supplier
Food cost calculators help track these comparisons so you know exactly what each portion costs your operation.
How do you calculate actual costs? (step by step)
Measure trim loss
Weigh the product before processing. Weigh what you actually use afterward. The difference is trim loss. For example: 2 kg salmon becomes 1.1 kg fillet = 45% loss.
Calculate the actual per-kilo price
Divide the purchase price by the yield (100% - loss). At €16/kg salmon with 45% loss: €16 ÷ 0.55 = €29.09 per kg usable fillet.
Factor in processing costs
Add up the time you spend on extra cutting or prep work. Multiply by your hourly rate (usually €20-25/hour). Add this to the actual per-kilo price.
✨ Pro tip
Always run trials during your busiest service periods within 72 hours of delivery. Products that seem great during slow prep time often create problems when you're in the weeds on Saturday night.
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 test every trial delivery this thoroughly?
Focus on your top 5 purchasing categories where the volume justifies the effort. For smaller items, rough estimates work fine.
How do I lock in trial pricing long-term?
Demand written price guarantees for minimum 6 months. Most suppliers hike prices after 1-3 months once you've switched.
What if trial quality doesn't match regular deliveries?
Ask about their distribution chain and storage methods. Trial products often come direct while regular orders go through distributors with longer storage times.
How do I calculate labor costs for processing time?
Use your total hourly labor rate including benefits - typically €20-25/hour for kitchen staff. Multiply by extra processing time required.
What percentage savings makes switching worthwhile?
Aim for at least 5% total cost reduction per portion. Smaller savings don't justify the operational disruption of changing suppliers.
Should I tell my current supplier about trials?
You're not obligated, but it's often smart. Many suppliers will match better pricing if you present concrete alternatives, saving you the switching hassle.
What's the biggest red flag during supplier trials?
Reluctance to provide written pricing or delivery terms. Any supplier who won't document their offer is planning to change it later.
📚 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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