« on: December 19, 2013, 11:22:03 AM »
I created a spreadsheet to track my efficiency, attenuation, etc. per batch. I can use these numbers to create graphs and visually see what trends are present. This is helpful to see what adjustments I need to make on my system/process to get my numbers where I want them. For instance, I may be getting 80% attenuation with US-05 on average when mashing at 154 when Beersmith says I should get 75%
The biggest thing for attenuation is the default values that Beersmith has loaded in for each strain. These aren't necessarily accurate. The program basically takes the yeast strain coupled with your mash temperature to estimate attenuation. There is a setting where you can edit the attenuation slope per change in mash temperature. For each strain, I edit the min/max attenuation % for results that I have gotten. I recently moved and am getting different results. Before my attenuation was much higher so my ABVs were too high, now it is the oppossite. I chalk it up to a change in water since nothing else has changed... It will take me several more batches to get Beersmith more accurate with my system/process...