I'm new to the forum and relatively new to home brewing. I've been doing 5 gallon extract kits for about a year and have done seven five gallon batches. I was hooked after the first one for sure. Recently my father in-law purchased a Minibrew 15 gallon conical fermentor for me to use for in his words, "to make him lots of beer...". I will be using a 40 or 60 quart ss stock pot so I'll be using a burner outside. My main question is this......say his favorite batch so far has been extract ale kit *****. When I do a double batch what changes? Normally the recipe calls for 2.5 gallon boil and then add water after the boil to reach 5 gallons. If I plan on boiling double does the recipe stay the same? Meaning boil 5 gallons and add the ingredients according to the 5 gallon recipe, and then add water to get 10 gallons after the boil?