re: Homebrewing: In-Process Thread

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By step up, do you mean start with say, 1/2 Liter starter, pitch dregs. Wait a day or 2, and add another 1/2 liter, and so on?

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I think the general rule of thumb is you want to double the volume when you step up.

Some people start extremely small (250ml) when building from dregs so they can step 2 to 3 times before pitching

You can play around with stepped starters on www.yeastcalculator.com and see there is a huge difference in final cell count when you double the size vs keep the same size start for each step.