Last week, I ordered wheat gluten to make seitan. I received some powder and attempted a recipe, which mixes 100g of water with 100g of gluten to form a sticky dough. However in my case, I only got a thick fluid. Even after adding 50g more gluten, I was unable to form pieces from the result. Almost all recipes for seitan use a one-to-one mixture (or even more water), so I have the assumption, that the powder is actually not gluten. Of course I did contact the company and they sent a replacement. However, the powder seems to be exactly the same.
Now I am wondering whether its possible to properly check whether the powder is gluten or not. There are some test kits online, but they are very costly, probably because they are intended to find even small traces of gluten for allergen tests. Maybe there is a cheap option or even something I could attempt at home with easy-to-get chemicals?
I am aware of the biuret test to check for proteins, but the company does sell lots of supplements and powdered "super foods", so I guess a protein test would be positive for half their stock.
Any other ideas?
seitan
(as aregluten-free
andvital-wheat-gluten
, too). $\endgroup$