Ask Mr. Wizard

Scaling up recipes


Glen Alden • Ormond Beach, Florida asks,

I started with 5-gallon (19-L) kits, but after about 30 batches I decided to double my capacity and brew all-grain 10-gallon (38-L) batches. My basic need is to convert a 5-gallon (19-L) recipe to 10-gallons (38 L). In the past I simply doubled the amount of each ingredient. Is this correct?

In general terms, I agree that when recipes are scaled up in volume that the ingredients are simply not proportioned to the change in volume. The reason that this method normally does
Response by Ashton Lewis.