How to Maintain Mash Temperature with BIAB

In many ways, Brew in a Bag (BIAB) is the easiest, simplest setup for brewing all grain beer. Unlike the traditional three vessel setup, all you need is one pot to serve as your hot liquor tank, mash tun and boil kettle. There are a lot of reasons to utilize the BIAB method, including saving money, reducing the space needed for equipment, and eliminating the issue of stuck sparges. When I started brewing in a small apartment, BIAB was simply the only way I could brew all grain beer. As I have gained more space, the simplicity of BIAB has continued its hold on me and is still the main way that I brew. As much as I love it, using one vessel for the entirety of your brew day can come with its own set of downsides as well.

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