Step 4: Cook the Seitan
The seitan should be stored, in its broth, in a refrigerated covered container. However, it can be frozen in the broth with no ill effects. I honestly have no idea how long it'll last, as I always cook it within about a week.
There are many ways to prepare Seitan, most of which make an extremely good meat substitute.
I am going to post another Instructable on my favorite way to prepare Seitan.
**Update: More Info**
Also, using store-bought flour, a 2-cup batch costs about $1.00, which is about a third of what you'd pay for the same amount at the store. (However, for me it works out to about 60 cents per batch, because I ground my own flour from wheat berries.)