malt_shovel said:
Hey mate. That looks bloody good and I would be really keen to know a lot more about your process for gluten freee from sourcing / selecting your grain to the final product. Feel free to PM or start another thread as I know there are other people who would be interested.
Cheers
Edak said:
In addition to that, I would like to know how you ensured that it was actually gluten free considering everything in your brewery has probably come into contact with gluten product? Would you feed this to a coeliac?
Thanks guys. First up, no I would not give this beer to a coeliac. Mainly because I wouldn't want that responsibility. I brewed it for a guy who is intolerant so I wasn't very strict.
But I believe I very easily could have made it properly GF.
I bought the grain from a health food store and it was certified GF.
Based on a fair bit of digging through publications in the journal of the institute of brewing and various other sources I settled on a schedule for the malting.
Sorghum needs to be malted at a warmer temp than barley but uses a similar steep and air rest schedule.
Given that I used different equipment for the malting I'd be confident that I had GF malt.
The brewing is where the GF ended though as I just used my usual BIAB setup.
I used a single step infusion at 66c for 90 minutes. It was probably more like 2 hours cause I went out for coffee.
Pretty awful efficiency wise, used about 2x the amount of grain as a regular malt beer.
I added bakers yeast as a nutrient in the boil. Probably not GF so I would not advise this for true GF brewing.
I used WB06 and I'm lead to believe that this is GF but don't take my word for it.
Had no issues with fermentation and it ended up at 1.003.
Didn't use Irish moss like I usually do but you could still read a newspaper through the glass.
Overall, pretty impressed with sorghum. I'm trying to get a few tonnes for this year but it is proving ellusive.
The main reason I tried this was to see if it could be done. I was amazed at the number of people asking about proper AG brewing for GF and the lack of available products to do so.
Turns out it can be done. A bit more fidly and a bit more expensive but it is possible to brew proper GF AG beer at home.
I am doing my best to make malted sorghum available but it will take time and money.