Hi,
I made a couple of beers a few years ago using the True Batch Brew all grain brew kit. They no longer sell the ingredient kits and I'm getting confused about how to scale a recipe to my one gallon demijohn.
Most recipes seem to be for 23l. Do I just scale all the ingredients (grain, hops etc) down to 4.55l equivalent levels or is there more subtlety involved?
Some recipes don't say what volume they're for, is 23l a standard brew size?
Other recipes give a %age of the grain varieties and no total mass to use. What total mass of grain should I be looking to use for a one gallon brew?
Thanks a mill.
Wag
I was hoping someone with more experience would answer this, I'm only homebrewing for the last 12 months, I'm doing 4.5L all grain batches (and 23L kit batches).
You can scale the ingredients in direct proportion. Your results will be a little different to the original brewers because your equipment is different and the efficiency of your system will be different. But I think the differences will be small and not worth worrying about at this stage.
I think the standard batch size for most American homebrew recipes is 5 US gallons (19 litres). And the standard for UK recipes is 5 UK gallons (23 litres).
There are a few 4.5L recipes on this website. I have a version of their American Pale Ale in a demijohn at the moment.
https://www.beercraftr.com/ (http://www.beercraftr.com/)
This guide here on this forum got me started into all-grain with a minimal setup using 5L batches for pale ale type recipe
https://www.thehomebrewforum.co.uk/threads/have-a-go-at-simple-ag.51779/