Many restaurant owners believe pricing display case items with variable weights is impossible without losing money. That's not true. Smart labeling strategies and proper cost calculations keep your margins intact while customers know exactly what they're paying for.
Why variable products create pricing headaches
Display cases naturally house products that don't match perfectly. One quiche slice weighs 180 grams, another hits 220 grams. Your salad portions vary because you added extra tomatoes to fill the container. This variation happens daily, but customers get confused about pricing.
💡 Example:
You sell slices of quiche that vary between 160-220 grams:
- Small slice (160g): €4.80 (€30/kg)
- Medium slice (190g): €5.70 (€30/kg)
- Large slice (220g): €6.60 (€30/kg)
Customer pays by weight, you maintain a fixed kilogram price.
Three labeling approaches that work
Approach 1: One price fits all
You charge identical prices for all variations of the same item. Customers love the simplicity, checkout moves fast, but you'll lose money on oversized portions and profit extra on smaller ones.
- Advantage: Lightning-fast transactions, zero arguments
- Disadvantage: Your profit margin swings wildly per item sold
- Works for: Items with minimal weight differences (under 20% variation)
Approach 2: Pay per 100 grams
You weigh every item and charge based on a fixed rate per 100 grams. Customers pay exactly for what they receive, but transactions take longer.
💡 Example:
Salade niçoise €3.20 per 100 grams:
- Portion of 180g: €5.76
- Portion of 250g: €8.00
- Portion of 320g: €10.24
Customer pays exactly for what they get.
Approach 3: Size-based pricing tiers
You establish small, medium, and large categories. Each category has one price, regardless of minor weight variations within that range.
- Small (150-199g): €4.50
- Medium (200-249g): €6.00
- Large (250-299g): €7.50
Calculating costs for each approach
Your cost calculations must match your chosen pricing strategy to protect profitability.
For fixed pricing:
Base your costs on average weights. Measure 20 portions, calculate the mean weight, then determine your margin from that baseline. From analyzing actual purchasing data across different restaurant types, establishments using this method see 15-18% margin variation between smallest and largest portions.
⚠️ Note:
Monitor your average weights monthly. Staff changes or recipe modifications can increase portion sizes, which kills your margins.
For per-100-gram pricing:
Calculate ingredient costs per kilogram, then divide by 10. Your scale must be precise to at least 5 grams for customer trust.
💡 Example:
Ingredient costs pasta salad: €12.50 per kg
- Target food cost: 35%
- Required selling price: €12.50 / 0.35 = €35.71 per kg
- Price per 100g: €3.57
- Rounded: €3.60 per 100g
Display case labeling tactics
Consistency in your labels eliminates confusion. Use identical terminology across all products.
- "Per piece" or "Per portion" for uniform pricing
- "Per 100 grams" for weight-dependent pricing
- "Small/Medium/Large" for tiered categories
Position your scale where customers can see it if you price by weight. Transparency builds trust and prevents disputes.
Choosing your pricing strategy
Your business type and customer expectations determine the right approach:
- High-volume lunch counter: Fixed pricing for speed
- Gourmet deli: Per-100-gram pricing for precision
- Coffee shop with food display: Tiered pricing as middle ground
Tools like KitchenNmbrs allow you to set different pricing strategies per product and track margins automatically.
How do you set price labels for variable products?
Measure your average weights
Weigh 20 portions of each product and calculate the average weight. This becomes your basis for cost price calculation. Also note the largest and smallest portion to see the variation.
Calculate cost price per strategy
For fixed prices: use average weight. For price per 100g: calculate cost price per kilogram and divide by 10. For weight classes: calculate per category separately.
Test your strategy for a week
Try your chosen method and measure the results. How long does sales take? Are customers satisfied? Does your margin still work out? Adjust if needed.
✨ Pro tip
Weigh 15 portions of your top 3 display items every 6 weeks. If average weights shift more than 12% from your pricing calculations, adjust your labels immediately.
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 a customer wants an oversized portion at the fixed price?
Establish clear limits beforehand. Post signs like "Prices apply to standard portions up to 250 grams. Larger portions priced by weight." Make these boundaries visible at your display case.
How often should I verify my average portion weights?
Check monthly whether your averages remain accurate. Staff changes or recipe adjustments can increase or decrease portion sizes, directly impacting your profit margins.
Do I need to display VAT separately on price labels?
No, your displayed price must include the 9% VAT. Customers expect to pay the labeled amount. Only add "incl. VAT" if you're concerned about transparency.
⚠️ EU Regulation 1169/2011 — Allergen Information — https://eur-lex.europa.eu/eli/reg/2011/1169/oj
The allergen information on this page is based on EU Regulation 1169/2011. Recipes and ingredients may vary by supplier. Always verify current allergen information with your supplier and communicate this correctly to your guests. KitchenNmbrs is not liable for allergic reactions.
In the UK, the FSA enforces allergen regulations under the Food Information Regulations 2014.
📚 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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