If you were to add up the cost of a one gallon batch of beer, there really isn’t a lot to it. However, one place to save a bit of cash is in the yeast. Many brewers will harvest yeast from batch to batch and save it for later. Since yeast is a living breathing organism, a brewer can continue to harvest the yeast indefinitely. And thus, I have decided to do the same….
Step One: Prepare the yeasts new home
For this step, I boiled a few jars, sealed them, and let then cool overnight for step two.
Step Two: Harvesting the yeast
To harvest the yeast, I first transfer my beer into a secondary fermentor, this helps the beer become more clear before bottling as well as provide a way to harvest the yeast.
After the beer is safely tucked into it’s new home, I add my boiled water to the carboy, shake, and pour into a large jar to separate.
After waiting a little while I can pour this mixture into my three small jars to await future use.
That’s it! Super easy, the big question is whether or not I can revive the yeast….
I will post more on that when I brew this weekend.
Jake's B.Log 
Yes, please do post about how well this works. I wish I had known how to do this in a previous batch where I dropped some serious $$ for a special yeast strain!
Thanks for reading! I will, probably won’t be for another well or so. I’ve been really busy lately.