Noon Whistle brewer and co-founder Paul Kreiner hashed out a handful of ideas that he thought would lend themselves to peanuts. The list included obvious choices, such as imperial brown ale (Kreiner was thinking of a peanut brittle brown ale) or stout. It included more challenging options, such as peanut hefeweizen. At Planters’ request, he also sketched out a possible peanut IPA — which is what the company ended up choosing.