alestateyall
Well-Known Member
I am wondering which bitterness calculation method is most popular.
Previously, the default IBU calculation for Beer Calculus was based on an average of a few popular formulas. It did four calculations (Garetz, Rager, Tinseth, and the legacy Hopville calc) and averaged them together. I chose to blend a few conflicting numbers together instead of committing to a single one by default. That neutral position tended to cause some confusion among both types of brewers: those who cared which formula was in use, but didn’t know you could change it, and those who didn’t care at all. Plus, the only indication that a formula selection was being made was a subtle message “avg” near the IBU result – pretty vague about what was happening behind the scenes. Recipes now default to the Tinseth formula. Hopefully this will satisfy those who prefer this formula, and also clarify the default calculation to folks who don’t really care.
Revvy said:The only real issue is if you are typing in someone else's recipe like from byo or somewhere and they are using a different one then you.
This is really why I am asking. I like the recipe database here but the IBU #'s never include the formula used. I always wonder.
Tinseth and Rager seem to start to drift at around 1.050 SG which is right around the OG of lots of good beers.
This is really why I am asking. I like the recipe database here but the IBU #'s never include the formula used. I always wonder.
I have been working with an iPhone app called Hopularity, and that uses Tinseth. Working with other recipes and the formulas they utilize (e.g. "Brewing Classic Styles," which uses Rager) is really no problem. I just enter the basic info from the recipe into Hopularity, and see what the original hop schedule looks like when converted to Tinseth.
Then, if I want to substitute hop varieties or fuss with the addition amounts or timing, at least I'll know where the recipe started from, and how my changes would effect balance.
Just match the HBUs (AA%*oz of hops) if you are using someone else's recipe.
I have been working with an iPhone app called Hopularity, and that uses Tinseth. Working with other recipes and the formulas they utilize (e.g. "Brewing Classic Styles," which uses Rager) is really no problem. I just enter the basic info from the recipe into Hopularity, and see what the original hop schedule looks like when converted to Tinseth.
Then, if I want to substitute hop varieties or fuss with the addition amounts or timing, at least I'll know where the recipe started from, and how my changes would effect balance.