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Author Topic: Minimum SO4  (Read 2535 times)

Offline ndcube

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Minimum SO4
« on: December 04, 2009, 11:28:48 am »
Reading through the online version of How to Brew it says the minium SO4 is 50ppm.  Is that generally accepted?  If so, what is the reason?

Offline Kaiser

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Re: Minimum SO4
« Reply #1 on: December 04, 2009, 11:39:38 am »
I don’t think that there is a minimum SO4 level. Unlike Ca++ and Mg++ it doesn’t seem to do anything to the process of brewing (at least I don’t remember seeing anything written). Certain styles may strongly benefit from it being above 50ppm, which is where that suggestion may have come from.


Offline bo_gator

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Re: Minimum SO4
« Reply #2 on: December 06, 2009, 06:39:47 pm »
I have brewed with water with less than 10ppm of So4 without an conversion, hot/cold break, or flocculation problems in the finished beer. 
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