Watch in HD. yeast attenuation. Find out the percentage of yeast attenuation that the yeast you are using has. Say 72% you take your original gravity 1.062 remove the 1.0 from it leaving you with a 62 - 72% from it =44.64 (round up) now take 62-45=17 then add the 1.0 to it so your final gravity should be around 1.017. So if i checked my gravity with a hydrometer for a couple days in a row and it was higher then this number then i would rouse the yeast to help get it down.
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