New answers tagged conversion
The conventional wisdom rule of thumb is to use 10% less pellets than whole hops to maintain the bitterness. Notice I said bitterness...for later additions for flavor and aroma, a 1:1 ratio is fine.
Given that no two plants within a particular variety will produce exactly the same hops, I doubt it will vary significantly more when you compare whole leaf to pellets. This is the same reason why stats about a hop are often given as a range. I think you're fine just substituting the pellets in without making any changes. I have used both and found little ...
I just use the same amount, under the idea that the different in weight is about the same as the difference in utilization. It just really does not matter at the end of the day; you're talking differences of "10%" with error bars of "5%".
I've been doing basically what you're doing for at least a year now. I'm not an award winning brewer by any means, but heating the water and grains together has worked just fine for me. Agreed on the 90 minute mash being unnecessary. 60 minute mashes are also not needed, and if you really want to save time look into doing iodine tests on your wort.
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