Most restaurants ignore seasonal fruit costs until their margins tank. But smart operators track these fluctuations monthly - strawberries jump from €3/kg in June to €8/kg in January. That €5 difference can destroy your brunch profitability if you're not prepared.
Why seasonal fruit makes your food cost fluctuate
Fruit is one of the most volatile ingredients in your kitchen. A smoothie bowl with fresh berries can hit 40% food cost in winter, then drop to 25% in summer. Without tracking these swings, you'll bleed money for months.
? Example:
Acai bowl (€12.50 incl. VAT = €11.47 excl. VAT):
- Winter: strawberries €8/kg, blueberries €12/kg
- Summer: strawberries €3/kg, blueberries €6/kg
- Difference per bowl: €2.50
Food cost winter: 35% | Food cost summer: 22%
Gather your current fruit prices
Start by documenting what you're actually paying. Most operators guess their fruit costs and wonder why their margins swing wildly.
- Pull invoices from the past 3 months
- Call your supplier for seasonal pricing forecasts
- Separate organic from conventional pricing
- Note: frozen fruit prices stay relatively stable
⚠️ Heads up:
Always calculate with usable weight. A kilo of strawberries becomes 850 grams after washing and hulling.
Calculate your seasonal impact per dish
For each fruit-heavy dish, run winter and summer cost scenarios. From tracking this across dozens of restaurants, the dishes with 100g+ fruit per serving show the biggest swings.
? Example calculation:
Yogurt parfait with 150g mixed fruit:
- Winter: €1.80 fruit (12% of €15 = 36% food cost)
- Summer: €0.90 fruit (6% of €15 = 24% food cost)
- Difference: 12 percentage points food cost
At 200 parfaits/month: €180 difference
Strategies for stable margins
You've got four main approaches to handle these price swings. Each has trade-offs you need to consider.
- Fixed prices: Accept thinner margins during expensive months
- Seasonal menu: Rotate dishes based on fruit availability
- Flexible pricing: Adjust menu prices quarterly
- Hybrid approach: Mix fresh and frozen fruit strategically
? Mix strategy example:
Smoothie bowl winter adjustment:
- 50% fresh strawberries (€8/kg)
- 50% frozen strawberries (€4/kg)
- Average price: €6/kg
Food cost stays stable around 28%
When to adjust your menu price
If seasonal shifts push your food cost up more than 5 percentage points, it's time to act. Smaller fluctuations? You can usually absorb those elsewhere.
- Food cost jumps from 25% to 35%: definitely adjust
- Food cost moves from 28% to 32%: probably manageable
- Review your top 5 brunch items monthly
⚠️ Heads up:
Customers understand seasonal pricing better than random increases. Be transparent about it.
Related articles
How do you calculate seasonal impact? (step by step)
Inventory your fruit usage
Make a list of all fruit types you use in brunch dishes. Note how many grams you use on average per dish and how many dishes you sell per month.
Gather seasonal prices
Ask your supplier for price indications for winter, spring, summer, and fall. Also note the prices of frozen alternatives as a backup option.
Calculate food cost per season
Calculate the food cost for each brunch dish using winter and summer prices. Use the formula: (ingredient costs / selling price excl. VAT) × 100.
Determine your strategy
Choose per dish whether you adjust the price, change the recipe, or accept the seasonal fluctuation. Document this so your team knows what's changing.
✨ Pro tip
Track your 3 highest-volume fruit dishes every 6 weeks during peak season changes (March-April, September-October). This prevents margin erosion before it hits your bottom line.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
Calculate it yourself?
Our free food cost calculator does it in seconds.
Was this article helpful?
Frequently asked questions
How much can my food cost fluctuate due to seasons?
Is frozen fruit a good solution?
How do I communicate seasonal prices to customers?
Which brunch dishes are most sensitive to seasons?
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.
More in this category
Related questions
Explore more topics
Calculate your breakfast and brunch margins exactly
Breakfast and brunch seem cheap, but buffet waste and portion sizes make it complex. KitchenNmbrs calculates your actual costs per cover. Start free.
Start free trial →