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Old 12-14-2012, 11:18 PM   #1
Oct 2011
Bozeman, MT
Posts: 36
Liked 3 Times on 2 Posts

I was pondering the idea of making a sweet/milk stout but doing a little twist in the end, make it sour. I have made a milk stout before and I know that yeast will not digest lactose. I know that brettanomyces will digest lactose. My question is this if I add lactobacillus when the beer is racked to secondary fermentation will it digest the lactose sugars and give the sour taste I am looking for?

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Old 12-15-2012, 12:33 AM   #2
Mar 2010
Posts: 7,624
Liked 637 Times on 556 Posts

Probably not.

Once you have the alcohol and hops in there, the Lacto will be severely slowed down, if not stalled.

I believe Lacto will eat Lactose, in the right environment.

Brett does not convert Lactose.

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