So i got half my malt dry enough to run through the oven and kiln it. You dont want to do this part of the process until you are sure your grain is fairly dry. I just weighed it and made sure it was the same or lower weight in total to when i originally weighed it. Another way to tell is the grain should have a bit of cruntch to it when you bite it.
I just spread out the grain on a couple trays about 2" deep, you might have to do it in a few batches if your malting a larger amount of grain. Then i just run the oven at 90-100 degs C (no hotter for a base malt)for a couple hours, stiring every 15-20 mins. Stiring regularly will get the heat through the grain more evenly. With my oven i cant get the temp low enough so i just leave the door ajar to let some of the heat out. I also recommend using a temperature guage of some sort to keep accurate temp control, the dial on the oven will be nowhere near accurate enought.
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Once the kilning process is done i work on getting the roots off the grain while its still hot, they are very brittle and break off easily. To do this i put 2-3 cups of grain in a 4ltr ice cream container, put lid on and hold tight. Stand it on its side and shake it very vigerously up and down. You only need to do it for 10-20 seconds, then pour into sifter and the roots should all sift out. Re run process if not all the roots are gone. I know this seems like a bit of stuffing around, but it makes a very clean malt doing it this way I've found. Some of the fine chaff comes through the sifter too.
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Once your malt is all root free, i just bag it up in a zip lock bag trying to get all the air out, then straight into an icecream container so its mouse proof. Because the grain has gone through the kilning process it shold be very clean of any bugs or unwanted critters and if kept in airtight storage, it should store for a fair while.
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So thats it, the way im doing it at the moment. So far it's a fairly simple process and has worked well for me. Making your own malt does take time, but is very rewarding and makes the finished product even more enjoyable to drink.
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