My understanding is YES based on the the percentage of reduction between the boiled down first runnings and the percentage of reduction in the balance of the kettle volume. There is no way you can achieve the same caramelization/ maillard reactions in the BK as you can boiling down the first runnings.
Hamiltont and Blatz . . I think he was asking if he should boil the first runnings . . I think!
You are asking me that question? Of course not, My Wee Heavy’s are on the heavy side, typically starting between 1.120 and 1.150. I boil 9 - 10 gallons down to about 5.5 in two turkey fryers, over 2.5 to 4 hrs depending. Make for an awesome brew.
Not with a spoon but with a whiskey backer… I actually have a Strong Scotch going right now. It started at 1.142. After a week & a half it was down to 1.044. It will go to a secondary Saturday. I’m hoping it will get down to the 1.030’s. Should be in the 14% range which is pushing it for Wyeast 1728.
I am debating this issue myself. I was planning to boil down only the first runnings, but now I’m thinking about boiling the first and second runnings together for a few hours. I think it would be easier and I also beleive the beer would benefit from it in that the entire wort would carmelize instead of just the first runnings.