I have two question about yeast starters. The first is a easy one what is the reason for decanting the starter as apposed to just dumping all the liquid into the wort. Off flavored maybe. The second question is I just realized that I have four IPA kits to brew and they all take WYeast 1056 and I currently only have one yeast pack in the fridge. I could easily buy more except I have read on this site people reuse their yeast. I always transfer my beer into a secondary after two weeks. How do i go about harvesting the spent yeast and how long will is last in the fridge. I am assuming that I will need to make a starter with this yeast.
Thanks in advance.