Over the years, I have started deviating from some of the standard brewing practices that were published years ago. I suspect that many of these practices were scaled down versions of commercial brewing practices, modified for homebrewing use. Here's my heretical practice #1. #1 - The 30-minute boil. The Book recommends a 60 or even 90 minute boil. I have had no issues with hot break or clarity. After running various calculations regarding hop utilization, I have found that I can shorten the boil with no ill effects if I increase the bittering hops quantity by about 30%. The rough formula is this: 70% of potential bittering at 30 minutes 83% of potential bittering at 45 minutes 89% of potential bittering n at 60 minutes 98% of potential bittering at 90 minutes Now, I'm not suggesting that anyone swap over to the 30 minute boil. I do this as I am often time-constrained and need to finish the brew day sooner. I am curious if anyone else has any experiences with boil times.