Bulk Recipe Scaling Calculator
Scale test batches to production quantities — with waste factor and cost per unit
Frequently Asked Questions
Why don't spice ratios scale linearly in large food batches?
Spices exhibit non-linear flavour perception at scale — a recipe using 1g chilli powder per 100g batch won't deliver the same heat at 10kg with 100g chilli. The Beidler model of taste perception shows flavour intensity plateaus at higher concentrations. In practice, spice quantities are scaled at 0.7–0.8× the linear ratio for batches above 10× the test quantity. Always conduct taste trials at each scale-up milestone (10×, 100×, production scale).
What is a waste factor in commercial food production?
Waste factor (yield loss %) accounts for raw material losses during processing — trimming, evaporation, mixing residue, packaging losses, and quality rejects. A 5% waste factor means for every 100kg of raw ingredients, only 95kg of sellable product results. Indian food manufacturers typically use 3–8% for dry snacks, 10–15% for fried products (moisture and oil absorption), and 5–10% for beverages. Build waste factor into your ingredient PO quantities.
What should I include in a recipe brief for my co-packer?
A co-packer brief should include: full ingredient list with quantities at the exact batch size (in kg or litres), ingredient specifications (grade, moisture, particle size, supplier), process steps with temperatures and times, critical quality parameters (texture, colour, moisture %, Aw), packaging format and fill weight, and target shelf life. This calculator auto-generates scaled ingredient quantities at your target batch size — use these figures directly in your co-packer brief.
How do I calculate ingredient cost per unit at production scale?
Cost per unit = Total ingredient cost at batch size ÷ Number of finished units. Note that bulk ingredient prices differ significantly from retail — spices bought by the kilo cost 40–60% less than retail; grains and oils bought by the tonne are 30–50% cheaper. Enter your actual bulk purchase prices in this calculator for accurate production cost per unit. This figure is your COGS — feed it into the profit margin calculator to see your full economics.