Can I do a kettle sour in your InfuSsion Mash Tun?

YES

The ideal vessel is one that is insulated to retain heat and is either a boil kettle or a pre-boil kettle like our mash tun - this is for sanitary reasons.

The steps are as follows:

  1. Collect your wort from the mash
  2. Clean your mash tun completely of grain (and sanitize with Starsan)
  3. Transfer your wort (either boiled for 15 mins or not boiled - your choice) and bring your temp to between 95F-115F
  4. Pitch your Lactobacillus and wait 12-24 hours until your desired sourness is achieved or you have reached your PH of 3.5

Holding temps are crucial for this process as a low temp under 70F will take months to produce the desired sourness. For sanitation reasons, a mash tun is a great place as grain naturally harbors Lactobacillus so every mash tun in the world has it in a small amount. Technically it could be done in plastic coolers but that produces risks in most people's minds, stainless is just much easier to rid of those bugs.

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