I'm using my kegs as unitanks, instead of a conical fermentor this time. For the fermentation I have attached a blow off tube into a bottle half full of water, then I will attach my spunding valve when my gravity is 6 points away from terminal gravity, then I will purge the yeast and lager, and serve from the same keg, eliminating and oxygen ingress possibilities during transfers. I let you know the results in a few weeks when the Oktoberfest is ready. On another note, my yeast farming is getting quite large, I have many mason jars of 34/70, 2 jars of Belgian ale yeast, 2 jars of California ale yeast, and a few other lager yeast ie 835, 838 etc... My next upgrade is a mill, and bulk ordering of my base malts, and storing some specialty malts ie carahell, vienna, malts i use regularly. I have started my Sauergut reactor, it is working out perfectly, I have done 3 batches so far with sauergut. It controls my ph without issues, I titrated a sample to determine the percentage and it is holding at 1.25%, I keep adding first runnings of each batch to replace what I use each time. Now I have one more thing I want to try, at least once, and that's a decoction mash.