Noob Questions - GF Specific

[rjmaillie]

If you crush fine, it will definitely get through. I was using a corona mill for a while and I had some issues early on until I fine tuned the crush (plus rice hulls). With the roller mill now, very little grain gets through and recirc is really good. If I had the option, I'd drop the perforations down a half millimeter to 1.5 to account for the smaller gluten free grains.

 

[skleice]

I just wrapped up my first brew on the Grainfather. I'm very happy with this unit. Strike water was ready and waiting in the morning. Mash went great. I did 104 for 15 minutes, 170 with termamyl for 15 minutes and 150 with AMG-100 for 90 minutes. After the sparge I was dead on with my predicted preboil gravity. I used the chiller to drop to 150 and my Hop whirlpool...very convenient. I blew out the chiller so my volumes would work out. I was under OG by .03 and I did leave a little wort behind that I prob could've gotten into the fermenter. My biggest issue was that my pump was getting clogged a bit. I had a decent amount of grain get into the boil. I'll change my crush for next time. Should be a very tasty beer!

Thanks for everybody's tips along the way!!!

 

[JMath]

Great to hear skleice! I too have found the chiller-heater combo to be extremely convenient. Both for chilling from 170 to 150 during the mash, and doing a hop whirlpool.

I haven't had my pump get clogged. How much rice / rice hulls did you use?

Yes, grain getting into the boil seems unavoidable due to the size of millet. I wouldn't want to change my crush and possibly get worse extraction. It seems to get filtered on the way to the fermenter.

 

[skleice]

I think my problem was I milled everything at once like I used to for my biab setup. Next time I'll mill the rice and buckwheat seperately at a higher setting. No biggie. It was a minor clog that I just blew out.

I'm interested to see how this turns out. I'm doing a couple of IPAs with a very basic grainbill but playing with the amount of oats. Gonna use exact same recipe aside from changing the hops. Today's brew had 18% oats, next one will have none. Gonna brew in 2 weeks...

 

[JMath]

I milled my millet and rice together at .500mm at glutarded-chris's advice for my last two batches. When I tried to mill the rice alone, I had to go to a really high gap and it didn't seem like it worked very well. But it could have just been my mill.

 

[skleice]

Hmm, not sure why I had a problem then. I definitely saw a grain blockage working it's way through the hose. The filter was still in place after the brew.

Maybe it was the 18% oats?

Edit - I used 15% rice\hulls

 

[skleice]

Just wrapped up another brew (Lilikoi Kepolo clone). Milled rice at .95 and millet at .6 (+10% oats). I also used a pasta strainer to pull some of the grain out of the boil. Pump worked like a champ with no issues. Can't wait to taste this one!