swap citric for lactic acid

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phbern

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HI,

I have a recipe for a schwartzbier that calls for .035fl oz of lactic acid (88%). I only have citric acid on hand; can I use this instead? What amount? It's obviously a very tiny amount to begin with, but my recipe program (Grainfather) won't let me re-run the water calculations without it. Any other suggestions?

Thanks!
 
I'm not a beer brewer, I have no idea why you need to that small amount of lactic acid to beer. I asked chatgpt and it said that 1ml (.035floz) of pure lactic acid is comparable to about 1,6 grams of citric acid.
 
Thanks, everyone! I made some other adjustment to the recipe and water additions and didn't need the acid anymore. We'll see how it comes out in a couple months!
 
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