Seasonal products can boost your margin, but only if you look beyond purchase price. Many entrepreneurs see cheap summer zucchini and think: jackpot. But forget they can't charge as much for summer dishes as winter comfort food.
The hidden costs of seasonal products
Seasonal products always seem more affordable. Asparagus in May costs €4/kg instead of €12/kg in January. But there are more costs involved than just the purchase price.
⚠️ Watch out:
Cheaper ingredients don't automatically mean better margins. You also need to look at what you can charge for the finished dish.
- Shorter shelf life: Fresh seasonal products spoil faster
- More prep time: Fresh products require more preparation
- Lower menu price: Summer dishes often cost less than winter ones
- Competition: Everyone has the same seasonal product
Calculate the real margin per seasonal product
Don't focus on purchase price - look at the margin per dish. Compare total profit per portion, not ingredient costs alone.
💡 Example: Asparagus in season vs. out of season
May (in season):
- Asparagus: €4/kg → €2.00 per portion
- Other ingredients: €1.50
- Menu price: €18.50 incl. VAT = €16.97 excl. VAT
- Profit per portion: €16.97 - €3.50 = €13.47
December (out of season):
- Asparagus: €12/kg → €6.00 per portion
- Other ingredients: €1.50
- Menu price: €26.50 incl. VAT = €24.31 excl. VAT
- Profit per portion: €24.31 - €7.50 = €16.81
Conclusion: Out of season you earn €3.34 more per portion
Check these 4 factors for each seasonal product
Before adjusting your menu for seasonal products, examine these points:
1. Real shelf life in your kitchen
Seasonal products spoil faster. Factor waste into your cost price - a pattern we see repeatedly in restaurant financials where seasonal margins disappoint.
- Strawberries: 15-25% waste due to rapid spoilage
- Leafy greens: 10-20% due to wilting
- Soft fruit: 20-30% due to bruising
2. Extra prep time
Fresh products demand more labor. Budget €0.50-€1.50 extra labor costs per portion for intensive prep work.
💡 Example: Fresh peas vs. frozen
Shelling fresh peas takes 15 minutes for 10 portions:
- Labor costs: €18/hour = €4.50 for 10 portions
- Extra cost per portion: €0.45
- Fresh peas: €6/kg vs. frozen €4/kg
- Difference per portion: €0.20 cheaper + €0.45 labor = €0.25 more expensive
3. What can you charge for the finished dish?
Summer dishes tend to be lighter and cheaper. Verify your lower menu price compensates for reduced costs.
4. Competition effect
If everyone offers the same seasonal product, it becomes a commodity. No premium pricing possible.
Seasonal products that usually work well
These products typically deliver good margins and command decent prices:
- Mushrooms (autumn): High premium possible, long shelf life
- Citrus fruits (winter): Stable pricing, versatile applications
- Pumpkins (autumn): Inexpensive, minimal waste, popular
- Apples/pears (autumn): Long shelf life, multiple dessert uses
Seasonal products that often disappoint
These appear attractive but carry hidden costs:
- Soft fruit (summer): High waste, short shelf life
- Fresh herbs (summer): Wilt quickly, small quantities
- Exotic vegetables: Unknown to guests, difficult to sell
⚠️ Watch out:
Test new seasonal products in small quantities first. Don't buy bulk just because it's cheap.
Practical calculation: seasonal margin vs. standard margin
Use this formula to compare seasonal products:
Seasonal margin = (Sales price excl. VAT - Total costs) - (Standard sales price - Standard costs)
💡 Example: Pumpkin soup in October
Seasonal dish (pumpkin soup):
- Pumpkin: €0.80 per portion
- Other ingredients: €1.20
- Waste: €0.10 (5%)
- Menu price: €9.50 incl. VAT = €8.72 excl. VAT
- Profit: €8.72 - €2.10 = €6.62
Standard tomato soup:
- Ingredients: €1.80 per portion
- Menu price: €8.50 incl. VAT = €7.80 excl. VAT
- Profit: €7.80 - €1.80 = €6.00
Seasonal advantage: €0.62 per portion extra
When seasonal products make financial sense
Seasonal products are financially worthwhile if they meet these criteria:
- Margin per portion increases (not just food cost decreases)
- Shelf life works for your turnover rate
- Guests pay a premium for seasonal appeal
- Prep time stays manageable
- You can offer it 4-6 weeks (otherwise too brief for menu changes)
How do you evaluate seasonal products on margin? (step by step)
Calculate the total cost price including waste
Add to the purchase price: extra prep time, expected waste (usually 5-15% more than standard products), and any special storage requirements. This gives you the real cost price per portion.
Determine the realistic sales price for the seasonal dish
Look at what similar establishments charge for the same seasonal product. Check if you can charge a premium for the seasonal character, or if you need to be cheaper than winter dishes.
Compare the profit per portion with your standard dishes
Subtract the total cost price from the sales price (excl. VAT). Compare this profit per portion with what you normally earn on similar dishes. Only if the seasonal margin is higher is it financially interesting.
✨ Pro tip
Track your seasonal margins over 3-week periods rather than weekly snapshots. Early-season premiums of 40-60% often drop to break-even by week 4 as market saturation hits.
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 always use seasonal products if they're cheaper?
No, cheaper purchasing doesn't automatically mean more profit. Look at total profit per portion, including waste and labor costs. Sometimes you earn more from expensive ingredients that command higher selling prices.
How long must a seasonal product be available to justify the switch?
At least 4-6 weeks to recoup menu adjustment costs, staff training and marketing expenses. For shorter periods, seasonal products usually aren't worth the effort unless you can charge a significant premium.
What waste percentage should I budget for seasonal products?
Budget 5-15% extra waste compared to standard ingredients. Soft fruit and leafy greens hit 15-25%, while harder vegetables stay around 5-10%. Track actual waste after two weeks to refine your estimates.
Can I stockpile seasonal products when prices drop dramatically?
Only for long shelf-life items like pumpkins, carrots or onions. Fresh products like asparagus or strawberries spoil too quickly, and purchasing savings get wiped out by waste costs.
How do I calculate extra labor costs for seasonal prep work?
Budget €18-22 per hour for kitchen staff time. If shelling fresh peas takes 15 minutes for 10 portions, that's €4.50 in labor = €0.45 per portion extra. Add this to your ingredient costs for accurate margins.
What's the minimum margin improvement needed to justify seasonal menu changes?
Aim for at least €0.50 more profit per portion to justify the operational hassle. Factor in menu reprinting, staff retraining, and potential customer confusion about changing offerings.
📚 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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