Beer attenuation is one of those seemingly complicated topics thrown around on the forums. It can get confusing for even advanced brewers who don’t use the terms often. Before we get into the calculations, I believe a few definitions of the terms are in order.

Generally for a fermentation vessel, the yeast gather at the top and bottom of the fermentation broth, but if you give the yeast enough time, they will all run to the bottom of the fermenter and wait for you to collect as much as possible.

Use A Quality Brewer’s YeastOne of the biggest mistakes you can make when it comes to fermentation is using a low quality brewer’s yeast. This will not only result in increased beer loss, but can also cause off-flavors and affect the appearance of your brew.Use a high quality starter culture or fres