I am finding several different ideas on IBU calculations. Anybody have a good formula? I used beersmith and 2 different books and all 3 came up with different numbers.
I had 1.00 oz Northern Brewer 7% for 30 min boil and 1.00 oz Northern Brewer 7% for 5 min boil. Beersmith gave me 16 IBU's. The Papazian book came out to 21 and this other book (forgot the author) came out to 24.
I had 1.00 oz Northern Brewer 7% for 30 min boil and 1.00 oz Northern Brewer 7% for 5 min boil. Beersmith gave me 16 IBU's. The Papazian book came out to 21 and this other book (forgot the author) came out to 24.