Author Topic: Minimum SO4  (Read 959 times)

Offline ndcube

  • Brewmaster
  • *****
  • Posts: 612
    • View Profile
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

  • Global Moderator
  • Senior Brewmaster
  • *****
  • Posts: 1797
  • Imperial Brewing Geek
    • View Profile
    • braukaiser.com
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.

Kai


Offline bo_gator

  • Assistant Brewer
  • ***
  • Posts: 124
    • View Profile
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. 
All views expressed in the above post are those of the author and do not necessarily represent the views of any other member of the AHA, BJCP, or home brew community at large.   


Home Brew’s curmudgeon at large