Can a starter be stepped up in the same 2L flask? Or do you have to move to a larger volume flask? I am trying to grasp the starter step up concept and I am hoping there are easier ways than moving up to a 4L flask.
Yes. Chill the first starter step in the fridge for a day or so. Then decant the beer on top and keep the white yeast on the bottom. Make some more starter wort, cool, and then add to the flask with the yeast.
bruin_ale said:To combine what the first two posters say: You can step up in a 2L flask, but stepping up a 2L starter by decanting and adding 2L more wort isn't going to get you significant cell growth - so it's kind of pointless.
If you want to step up and stick to a 2L flask, start with a 1L starter then decant as the above post says and add 2L of fresh wort. You'll end up with more cells than just doing a 2L starter by itself - but still not as good as stepping up to a 4L starter or something similar.
Tim27 said:I suppose I will just pitch 2 packets/tubes of yeast and use the 2L flasks. Just seeing if I can save a little money on my batches being that yeast is so darn expensive. This is all information I need for when I start doing lagers and stronger ABV ales. Thanks for all the replies.
why not pitch 1 tub/packet into a 2L container and let them multiply?
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