Dr. Farber who discovered GY7B was at my Homebrew club before COVID hit, and had some beers to sample. I can’t wait to try making a gose or maybe a sour ipa… sorry if this sound like an ad; it’s not…
One way to do that is by the “kettle souring” process where you pitch lactobacillus and hold the kettle between 90-100°F for 36-48 hours (you also want to keep oxygen out if possible), or until the pH drops to where you want it. Then you boil the wort and add some hops and/or fruit if you’d like, then ferment with a low pH tolerant yeast. Boiling kills the lacto (so will the hops), so you don’t have to worry about contaminating your equipment.
This new yeast @jmck linked above can skip the kettle souring process, because the yeast itself produces the lactic acid as a byproduct. So it does the souring and fermenting all in one. I have yet to try it, but I know it works!
I managed to score a couple satchels… so I just need to get a recipe and buy some malt & hops.
I’m thinking of Pilsner & Wheat malt in like a 2:1 ratio… target somewhere around a 1.050 OG then bitter it with some noble hop to no more than 8-10 IBU… nice and simple…
So sort of a less funky Lambic
Or maybe an Imperial Beliiner Wisse
Sour KISS!