Cooking Time Scaling Calculator
Estimate adjusted cooking time when portion size, product weight, or batch size changes.
Result
Scaled cooking time: 54.2 min
Uses a 0.75 exponent heuristic for thermal scaling.
How to Use This Tool
Input the weight of your original batch or portion size.
Enter the cooking time for your original batch size.
Input the weight for your new batch size or portion amount.
Review the scaled cooking time and adjust based on visual cues.
Example Results
Cake Batch Scale Up
From 500g cake at 30min to 2000g batch
Chicken Portion Increase
From 1kg chicken at 45min to 3kg batch
Soup Volume Increase
From 2L soup at 40min to 8L restaurant batch
Cookie Production Scale
From 200g dough at 12min to 1.6kg batch
Frequently Asked Questions
Why doesn't cooking time scale linearly with weight?
Heat transfer limitations prevent linear scaling. Large batches have less surface area-to-volume ratio, so heat penetration takes longer. The 0.75 exponent accounts for this thermal behavior.
What is the 0.75 exponent used in this calculation?
The 0.75 exponent is a common heuristic for thermal scaling. It means that when you double the weight, cooking time increases by about 2^0.75 = 1.68x, not 2x.
Do different foods require different scaling factors?
Yes, dense foods, small items, and baked goods may need more conservative scaling. Thin items and soups may scale more linearly. Use the calculated times as starting points.
How do I verify scaled cooking times are correct?
Always use sensory indicators: visual doneness, internal temperature, texture, and aroma. Use instant-read thermometers for precise internal temperature verification.
When should I split large batches into multiple batches?
Consider splitting when scaled time exceeds 2x the original, when equipment capacity is limiting, or when quality may suffer from prolonged cooking. Multiple batches often yield better consistency.
How does equipment affect time scaling?
Industrial equipment with better heat transfer may cook faster than estimated. Home ovens and pans may take longer. Always test and adjust for your specific equipment.