Just came across this thread after looking to see if anyone else had tried making oat beer.
What i essentially did was in a BIG BIG pot, throw in a good few KG of cheap oats, boiled them until they were essentially porridge, then added Amalayse and left it covered for a couple of days.
Then i added even more water so that what resulted was very watery and boiled again.
This was my recipe: (5 UK gallon/25l batch)
2kg oats
1 pound honey
1 pound Wheat Dry extract.
For the oats - boil them to oblivion - like HOURS - This will take a lot of water - 16 litres in-fact - so get a BIG pot!
Then, add amylase - couple teaspoons worth once it has cooled and leave for 2 days covered.
Boil oats again.
Add water until the mix is very runny, runnier than gruel. This will take a lot of water again, so will require you to split the mixture to several pans to complete. Take 1/3 of the oat-slop and make it back up to 16 litres with boiling water.
bring these to the boil and leave to cool.
Strain this mixture through very fine muslin or a jelly bag, squeeze to get all liquid out but avoid as many lumpy bits getting out.
Guess what - BOIL AGAIN!
This needs to be boiled right down - back to the original 16 litres, so get all your pans going on a hob, open a previous brew and wait...
Right - thats the hard part done - now you just want to let the oat mixture cool and add to your FV.
Get a pan of water boiling - just a couple litres, and add your dry wheat extract - while thats boiling throw in a hop bag of whatever you want really - personally i used 25g of Cascade and 25g of Galaxy for 25min in the boil.
Let this mix cool and add to the FV.
Add your honey to the FV, top it up to around 25l with cold water and add your yeast (I used US-04) once it reaches the room temp!
Leave for 7-10 days bubbling away, bottle and keep for 3 weeks warm and a week in the cold - DONE! XD
hope people see this and like it