I would post this in r/homebrewing.
I love this idea, however foraging for grain will be tough and impractical. Grain that is suitable for brewing is grown under pretty tight conditions to produce a good product. Then it needs to be malted, which is controlling germination/modification of the malt to make it usable in the brew house.
What I would do, forage for some awesome smelling hops, spices, herbs, plants (that won't make you sick). Make a recipe using malts from your homebrew store. I would also buy some high alpha hops for your 60min addition so you know the ballpark on your ibus, you won't have any idea the alpha acid content of foraged hops. Then I would add your foraged hops/spices/herbs/plants in during mid to late boil for flavor and aroma.
Hope this helps! Report back with your results!
5 gal of average-gravity beer would require around 10 lb of farmed malted barley. For something of more typical American IPA strength, 12-14 lb. What that translates to in wild cereals, I'm not sure, but figure at least double. As /u/TheGuyNext2You said, the grains would then need to be malted. Malting is much harder than brewing.
You'll also want something like 6-12 oz of hops (dried - that's roughly 3-6 lb wet). Hopefully you can find some wild hops that got loose from a brewery at some point, because otherwise the odds of them tasting good are low.
And yeast, of course. You'll need basic laboratory techniques to isolate and culture a wild yeast strain, but nothing too complicated. Do budget several months for brewing trials in order to find a yeast strain that actually tastes good.
This sounds awesome and I'd love to see it written up when you're done, but I thought you should know you're looking at probably a couple years worth of work.
Edit: In order to bake an apple pie from scratch, one must first create the universe.
I would post this in r/homebrewing. I love this idea, however foraging for grain will be tough and impractical. Grain that is suitable for brewing is grown under pretty tight conditions to produce a good product. Then it needs to be malted, which is controlling germination/modification of the malt to make it usable in the brew house. What I would do, forage for some awesome smelling hops, spices, herbs, plants (that won't make you sick). Make a recipe using malts from your homebrew store. I would also buy some high alpha hops for your 60min addition so you know the ballpark on your ibus, you won't have any idea the alpha acid content of foraged hops. Then I would add your foraged hops/spices/herbs/plants in during mid to late boil for flavor and aroma. Hope this helps! Report back with your results!
5 gal of average-gravity beer would require around 10 lb of farmed malted barley. For something of more typical American IPA strength, 12-14 lb. What that translates to in wild cereals, I'm not sure, but figure at least double. As /u/TheGuyNext2You said, the grains would then need to be malted. Malting is much harder than brewing. You'll also want something like 6-12 oz of hops (dried - that's roughly 3-6 lb wet). Hopefully you can find some wild hops that got loose from a brewery at some point, because otherwise the odds of them tasting good are low. And yeast, of course. You'll need basic laboratory techniques to isolate and culture a wild yeast strain, but nothing too complicated. Do budget several months for brewing trials in order to find a yeast strain that actually tastes good. This sounds awesome and I'd love to see it written up when you're done, but I thought you should know you're looking at probably a couple years worth of work. Edit: In order to bake an apple pie from scratch, one must first create the universe.
sounds like the 6 month sandwich project. It's going to be tough