An open bottle of wine that doesn't sell costs you money. Most bar managers overlook this hidden expense, yet it can devastate your profit margins. Learn how to properly factor wine waste risk into your pricing strategy.
An open bottle of wine that doesn't sell costs you money. Most bar managers focus on the purchase price and forget about the ticking clock. The reality? Every opened bottle carries hidden risk that can silently eat into your margins.
The moment you pop that cork, you're racing against time. White wine stays fresh for 3-5 days, red wine for 5-7 days. After that, it's money down the drain. You must build this potential loss into your cost calculations.
⚠️ Note: It's not just wasted product. Staff time spent opening bottles and checking quality also hits your bottom line.
Calculate your average waste per bottle
Track your losses for thirty days to get real numbers. No guesswork—actual data drives accurate pricing.
💡 Example:
Restaurant 'De Druif' opens 40 bottles monthly:
- 36 bottles sold completely
- 4 bottles partially wasted (30% average per bottle)
Factor waste into your pour cost
Pour cost works like food cost but for beverages. Wine by the glass requires more than simple bottle math.
Formula: Actual cost per glass = (Bottle purchase price / Glasses per bottle) × (1 + Waste percentage)
💡 Example calculation:
Sauvignon Blanc costs €18 per bottle, yields 5 glasses, with 3% waste:
- Base cost per glass: €18 / 5 = €3.60
- With waste factor: €3.60 × 1.03 = €3.71
Your true cost is €3.71 per glass, not €3.60
Strategies to reduce waste
Lower waste equals better margins. Here's how to minimize losses:
- Limited wine menu: Fewer open bottles means less risk
- Coravin system: Pour premium wines without opening bottles
- Daily quality checks: Identify aging bottles and push them first
- Kitchen integration: Transform old wine into cooking ingredients
Seasonal waste and forecasting
Waste patterns shift with seasons and days. Summer brings white wine demand; winter favors reds. Weekdays differ from weekends too.
Smart inventory timing
Match your bottle opening to predictable patterns:
- Monday-Tuesday: Lower guest counts mean fewer new bottles
- Weekends: Higher volume allows more variety
- Holidays: Stick with proven crowd-pleasers
Smart timing can drop waste from 5% to 2-3%—the kind of thing you only learn after closing your first month at a loss.
Impact of wine selection on waste
Different wines carry different risks. Your selection strategy directly affects waste percentages.
Risk categories by wine type
- Low risk: Popular varietals (sauvignon blanc, pinot grigio, merlot) - reliable sellers
- Medium risk: Mid-tier premiums - steady but slower movement
- High risk: Specialty wines over €8 per glass - unpredictable demand
Calculate separate waste percentages for each category. More precision equals better pricing.
VAT and pricing for wine
Alcoholic beverages hit the high VAT rate. This dramatically impacts your final pricing structure.
⚠️ Note: Wine carries 21% VAT, not the 9% food rate. Always work with pre-VAT prices for pour cost calculations.
💡 Example pricing:
- Cost per glass (including waste): €3.71
- Target pour cost: 25%
- Selling price before VAT: €3.71 / 0.25 = €14.84
- Final price with 21% VAT: €14.84 × 1.21 = €17.96
- Menu price: €18.00 per glass
Real-world example: Brasserie Het Wijnglas
This 60-seat brasserie serves lunch and dinner daily. They average 25 wine glasses per day but struggled with margins.
Starting situation
- 6 wine varieties by the glass
- 8 bottles open simultaneously
- 7% waste rate (excessive)
- 35% average pour cost (too high)
Solution implementation
Step 1: Cut wine list to 4 options (2 white, 2 red)
Step 2: Track bottle opening times daily
Step 3: Discount aging bottles slightly
Step 4: Recalculate costs using 3% waste
Two-month results
- Waste dropped from 7% to 3%
- Pour cost improved to 27%
- €1.20 extra profit per glass
- Additional monthly revenue: €900
Common mistakes in wine cost pricing
1. Ignoring waste in cost calculations
Many operators only consider purchase price. Forgotten waste can steal 2-8% of your margin.
2. Using blanket waste percentages
Expensive Barolo carries different risk than house wine. Calculate separate rates for each price tier.
3. Poor staff communication
Teams must know which bottles are open and their selling priority. Without clear systems, waste stays high.
4. Wrong VAT calculations
Wine takes 21% VAT, not 9%. This error completely distorts pricing and profit calculations.
5. Ignoring seasonal patterns
Summer and winter bring different consumption habits. Adjust selections and inventory accordingly.
Tracking pour cost digitally
Manual tracking wastes time and creates errors. Digital systems automatically calculate pour costs and adjust for price changes.
Quality software factors in waste percentages by wine type and alerts you to margin problems before they hurt profits.
Final thoughts
Building waste risk into wine pricing protects your margins. Calculate monthly waste averages, include percentages in cost prices, and deploy loss-reduction strategies. Remember: wine carries 21% VAT and different types have varying waste risks. Smart management can drop pour costs from 35% to 25-27% while boosting wine revenue significantly.
How do you calculate waste risk in your wine margin? (step by step)
Measure your waste percentage
Track for a month how many bottles you open and how many you throw away. Calculate what percentage of your open bottles don't sell completely.
Calculate actual cost per glass
Divide the purchase price by the number of glasses per bottle. Multiply this by (1 + waste percentage) to factor in the loss risk.
Set your selling price
Divide your actual cost price by your desired pour cost percentage. Don't forget to add 21% VAT for the final menu price.
✨ Pro tip
Track your wine waste for exactly 28 days, then apply a 15% buffer to that percentage in your cost calculations. This accounts for seasonal variations and gives you margin protection during slower periods.
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's a realistic pour cost target for wine?
Most successful restaurants maintain 20-28% pour costs for wine. Premium selections might reach 30%, while house wines often hit 18-22%. Your target depends on positioning and local market conditions.
How many glasses should I pour from a standard bottle?
A 0.75L bottle yields 5 glasses at 150ml each. Some operators pour 6 glasses of 125ml for better margins, but customer satisfaction might suffer with smaller pours.
Should spillage and staff tasting count as waste?
Absolutely. Beyond aging wine, you lose product through spills, tastings, and sampling. Add another 1-2% to your waste calculations for these operational losses.
Can old wine become useful instead of waste?
White wine works great in sauces and risottos. Red wine enhances stews and reductions. Converting waste into cooking ingredients turns losses into kitchen value.
How often should I recalculate wine pricing?
Review every quarter minimum. Supplier prices change frequently, seasonal patterns shift, and new staff can alter waste rates. Stay current or margins suffer.
What's the biggest wine waste mistake restaurants make?
Opening too many varieties simultaneously without tracking turnover rates. Six different wines by the glass sounds impressive but often creates massive waste compared to four well-chosen options.
Should I use different waste percentages for different price points?
Definitely. Budget wines under €6 per glass typically have 2-4% waste, while premium selections over €10 can see 8-12% waste due to slower movement and higher standards.
📚 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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