I began brewing BIAB with a starter kit for 1 gallon batches. I would like to move up to 5 gallon batches, but my original brew bag would be too small for the quantity of grains required.

I know nothing of "needlework", I can buy material and give it to someone who would make it for me, but i need to buy the correct amount/dimensions of material.

What amount of material would I need to buy and what would the pattern dimensions be to make the actual bag?

  • I think this will depend entirely on the dimensions of your brewing kettle. Commented Mar 30, 2015 at 11:24
  • @FranklinPCombs, that is probably the best place to start. I do not have my pot yet but wanted to start with the bag and was hoping there would be "general" sizes to work with. :) Commented Mar 31, 2015 at 7:58

1 Answer 1


I use 5 gallon paint straining bags for 5 gallon BIAB. My suggestion is to buy a two pack (that's how they're sold) and use one as a sizing pattern.

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