For you guys who brew smaller batches, are hops linear in terms of scaling down from a 5 gallon batch to a 3 gallon batch or from 5 to 10 gallons for that matter? Or do you need moreover less per gallon as you go either direction on a batch? I should know this, but I haven’t seen it discussed, or at least I don’t recall seeing it…
You may see some increase in isomerization efficiency as you scale down because your starting wort gravity is usually lower (assuming that your boiloff rate is the same as a larger batch). I couldn’t really say if it’s enough to be significant, as I generally just use my software to scale recipes if needed.