Lactose for the lactose intolerant? - Home Brew Forums

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Old 03-16-2012, 02:54 PM   #1
Grinder12000's Avatar
Jul 2008
Columbus WI
Posts: 2,995
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So if I use 4 oz of lactose in a brew, just how bad is this for lactose intolerant people. I almost want to shy away from using it.
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Old 03-16-2012, 02:57 PM   #2
JonM's Avatar
Aug 2010
Posts: 7,648
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I'd say warn them ahead of time and let them make the call.
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Old 03-16-2012, 04:34 PM   #3
Dec 2010
Concord, MA
Posts: 629
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4 oz lactose in a 5 gallon batch (5 * 128 oz = 640 oz = 53 12oz bottles) would yield about 0.075 oz of lactose in a 12 oz bottle.

Googling, I found 9-12 grams of lactose in 1 cup of milk. 12 g = 0.423287 oz.

So, if your lactose intolerant friends can drink (roughly) 1.4 ounces of milk (a bit less than 2 Tablespoons) without a problem, they should be fine drinking a 12 ounce bottle of your beer.

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