Why do seasonal price swings always catch restaurant owners off guard? Tomatoes jump from €2.50 to €7.50 per kilo overnight, yet your menu price can't change that fast. Most operators just accept these fluctuations and watch their margins evaporate.
Why seasonal prices wreck your margins
The real issue isn't the price change itself - it's the timing. Your supplier calls: "Tomatoes are jumping from €2.50 to €7.50 per kilo." You're stuck choosing between accepting it or scrambling for alternatives. But smart operators create agreements beforehand.
⚠️ Watch out:
Many business owners only react after the price has already gone up. By then, you have no negotiating power.
Calculate your maximum purchase price per season
For every ingredient, you need to know: what's the most I can pay without blowing my margin target? Do this calculation upfront, not during a negotiation. It's the kind of thing you only learn after closing your first month at a loss.
? Example:
Your tomato-mozzarella salad currently costs €6.50 in ingredients:
- Tomatoes (200g): €0.50 (at €2.50/kg)
- Mozzarella (125g): €2.25
- Basil, oil, balsamic: €3.75
Selling price: €18.50 incl. VAT = €16.97 excl. VAT
Current food cost: 38.3% - too high!
You want to hit 30% food cost. That means the dish can cost maximum €5.09. If tomatoes get pricier, you'll need to source other ingredients cheaper or tweak your recipe.
Negotiation strategies per season
1. Fixed price with a range
Agree on: "Tomatoes cost €2.50-€4.50 per kilo, depending on the season." Above €4.50, you'll switch to a different product or supplier.
2. Seasonal contracts
Make separate agreements for summer (cheap) and winter (expensive). Adjust your menu per season.
? Example negotiation:
"I buy 2,000 kg of tomatoes annually. Can we agree on:"
- May-October: €2.50/kg
- November-April: max €4.50/kg
- Above €4.50: I'll switch to cherry tomatoes
This gives you predictability and an exit strategy.
Alternative ingredients per season
Prepare for expensive periods by having alternatives ready. Not every ingredient needs to be identical year-round.
- Summer: Fresh tomatoes, zucchini, eggplant
- Winter: Roasted peppers, sun-dried tomatoes, mushrooms
- Spring: Asparagus, peas, radishes
- Fall: Pumpkin, Brussels sprouts, chicory
By letting your menu move with the seasons, you maintain your margins and offer variety. Customers actually appreciate seasonal freshness.
Negotiating with multiple suppliers
Use competition as a negotiating weapon. But do it smartly:
⚠️ Watch out:
Don't play suppliers against each other with lies. That backfires and you lose trust. Be honest about your alternatives.
For example, say: "Supplier X offers the same for €3.80. Can you match that?" This works better than threatening or bluffing. Suppliers respect transparency.
Set up monthly price reviews
Agree to review prices every month. This prevents sudden shocks and lets you adjust quickly. No surprises, no emergency calls.
? Practical agreement:
"Every first Friday of the month we review prices for the next 4 weeks. Price increases above 15% we discuss separately."
With a food cost calculator like KitchenNmbrs, you immediately see the impact of price changes on your food cost per dish. That way you can quickly decide whether to accept the new price or look for alternatives.
Related articles
How do you negotiate seasonal prices? (step by step)
Calculate your maximum purchase price per ingredient
For each main ingredient, determine: at what price does my food cost get too high? Calculate what you can pay at most to stay within your margin target.
Make seasonal agreements upfront
Don't negotiate during the expensive period, but at the start of the year. Agree on price ranges per season and determine your exit strategy.
Prepare alternatives
Make sure you have a cheaper alternative ready for each expensive ingredient. Test these alternatives in your recipes beforehand.
Set up monthly price reviews
Schedule a short conversation with your supplier every month about upcoming price changes. This prevents sudden surprises.
Monitor your food cost in real-time
Track weekly how price changes affect your margins. When deviations get too big, switch to alternatives.
✨ Pro tip
Create price alerts 6 weeks before peak season hits. Contact your top 3 suppliers by mid-October for winter pricing and mid-February for summer rates - this gives you actual negotiating time instead of reactive damage control.
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 my supplier won't negotiate about seasonal prices?
How often should I adjust my menu for seasonal prices?
Can I pass seasonal prices through to my menu price?
How do I prevent my supplier from abusing seasonal prices?
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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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