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There are studies that show that hop extraction happens much faster than initially thought. Usually within 24 hours on the homebrew level. Rousing helps, although we don't want yeast back in suspension, so there's that. I'm not saying that I personally DH at 40-45F, so maybe breweries dump the yeast, DH, then recirculate to keep in suspension? Personally, I DH at 50F for 24-48 hrs, cold crash to 37-38F for 24 hours, and when I keg I can still see some hop debris floating around. I would say a majority of the hops are crashed out, but extraction has already occurred. |
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