Has anyone used this product? I just discovered that I am slightly gluten intolerant. I understand that this product reduces gluten in addition to other proteins that cause chill haze. It is ridiculously expensive in homebrew form, which is 5 to 1 dilution over the professional concentration. It costs near $5.00 per 5-gallon batch. However, I can get 1L of concentrated Brewer’s Clarex from White Labs for under $70.00 shipped. The only problem is that the product has shelf life of 2 years when refrigerated. At 2ml per 5-gallons, 1L is far too much for my needs. If I can get nine other people to agree to take 100ml each of my hands, I believe that the cost per 100ml shipped would be around $12.00 with a 100ml bottle shipped. That is 100 / 2 = 50 batches for $12.00, or $0.25 per batch.
I believe More Beers “store brand” Cellar science sells this. They have a 1 oz size for $20, which I think should be around 20 doses.
I have used Clarity Ferm for years. My wife was diagnosed with celiac disease and I first tried to brew with sorghum and other gluten-free ingredients, but they are hard to get and have distinct (and not always desirable) flavors. With Clarity Ferm I can brew any beer I want and they are all fine for her, although that may not be the case for everyone. I would encourage you to try it and see how it goes. I now use the MoreBeer Clearzyme, purchased in the 1 oz bottle. For $20 I get enough for 30 brews, which is $0.67 per brew and I know I can use most of it in 2 years.
I’ve been using the same bottle of Clarex for 3-4 years and the gluten intolerant folks are fine with my beers. I use a little more to compensate for the age. I have not shared my beers with someone who is celiac. At some point maybe I’ll try a side by side comparison for clarity purposes.