Here's a confession from restaurant owners everywhere: handwritten notes in the kitchen are the norm, but they're also financial disasters waiting to happen. Between the note and the actual purchase, a lot goes wrong. Your chef writes down what's needed, someone goes shopping, and the numbers never add up.
Why notes always go wrong
It starts innocently. Your chef scribbles on a note: "10 kg potatoes, 5 kg onions, steak for the weekend". Seems straightforward, right? But between that crumpled piece of paper and what actually gets purchased, three things consistently derail your budget.
⚠️ Heads up:
Many business owners think they know what's being purchased. But without a system, you're always playing catch-up.
Problem 1: Vague quantities
"Steak for the weekend" - what does that actually mean? How many kilos? What cut? What quality grade? Your buyer's interpretation rarely matches your chef's intention.
💡 Example:
Chef writes: "Salmon for this week"
- Chef thinks: 3 kg fillet (€54)
- Buyer purchases: 5 kg whole salmon (€90)
- Difference: €36 extra, 40% trimming loss
Actual fillet costs: €150 instead of €54
Problem 2: No price control
Your chef doesn't track what things cost. He writes down what he needs, completely unaware that beef jumped 20% this week. You only discover this painful reality after the invoice arrives.
- Seasonal products: Price can swing 50% per week
- Meat and fish: Daily price fluctuations, no fixed rates
- Quality differences: Premium vs. standard brands, sometimes 30% difference
- Packaging size: 1 kg vs. 5 kg package, different per-kilo pricing
Problem 3: Impulse purchases
Your buyer spots attractive products at the supplier. "We can definitely use that." Before you know it, there are mystery ingredients in your cooler that weren't on any list.
💡 Example:
Weekly budget: €800
- List: €650 in planned purchases
- Extras: €280 in "attractive products"
- Total: €930 (16% over budget)
Per year: €6,760 in extra spending
Problem 4: No follow-up control
The note vanishes. Nobody verifies whether what was purchased matches what was planned. You only realize your food cost is spiraling out of control during monthly reviews - it's a pattern we see repeatedly in restaurant financials across the industry.
⚠️ Heads up:
Without control you typically spend 15-25% more than planned. With €3,000 in purchases per month, that's €450-750 extra per month.
The real cost of chaos
Handwritten notes drain your profits in four distinct ways:
- Overbuying: Too much of expensive products
- Wrong quality: More expensive than necessary
- Waste: Products you can't actually use
- No visibility: You don't know where your money disappears
💡 Calculation example:
Restaurant with €4,000 in purchases per month:
- Overbuying: 10% = €400/month
- Wrong quality: 5% = €200/month
- Waste from chaos: 8% = €320/month
Total loss: €920/month = €11,040/year
Digital shopping lists as a solution
With a digital system you create shopping lists with exact quantities and current prices. Your chef immediately sees what things cost and can make informed choices.
- Exact quantities: No interpretation needed
- Current prices: Know what you're spending before you order
- Budget control: See immediately if you're exceeding budget
- Digital verification: Check afterwards what was delivered vs. what was ordered
How do you create a reliable shopping list? (step by step)
Create a weekly menu with exact portions
Calculate how many portions you expect per dish. Multiply by the amount per portion. This way you know exactly how much you need.
Check current prices with your suppliers
Call or check online what products cost this week. Seasonal products and meat/fish can fluctuate significantly. Update your prices weekly.
Set a weekly budget and stick to it
Calculate your maximum purchase based on expected revenue and desired food cost. Don't go over budget, even for 'nice products'.
✨ Pro tip
Track your top 3 most expensive ingredients daily for the next 14 days - you'll discover price patterns that can save you hundreds. These premium items often fluctuate without warning, and early detection prevents budget disasters.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
Was this article helpful?
Frequently asked questions
Why do handwritten notes never match the invoice?
Because there's too much room for interpretation. 'Steak for the weekend' can mean anything regarding quantity and quality. Without exact specifications, your buyer purchases differently than your chef intended.
How much money do you lose through chaotic purchasing?
On average 15-25% of your purchasing budget. With €3,000 in purchases per month, that's €450-750 in extra spending due to overbuying, wrong quality, and impulse purchases.
Can't I just communicate better with my buyer?
Communication helps, but the problem runs deeper. Without a system and current prices, you're still guessing. You need concrete numbers and control, not just better agreements.
What if my chef doesn't want to work digitally?
Start small. Have your chef write down only exact quantities instead of vague terms. Going digital can come later, but specification is the first step toward control.
How do I prevent impulse purchases from suppliers?
Set a strict budget and stick to it. Make agreements that only items on the list are purchased. Any extra purchases must always be discussed first.
Do seasonal price fluctuations really impact costs that much?
Absolutely. Seasonal products can swing 50% per week, and specialty items like truffles or certain fish can triple in price during off-seasons. Without tracking these changes, your food costs become unpredictable.
📚 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.
Stop losing money in your kitchen
Most restaurants lose 5-15% margin due to invisible mistakes. KitchenNmbrs makes every euro visible — from purchase to plate. Start your free trial and discover where your money is leaking.
Start free trial →