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Old 02-24-2013, 09:01 PM   #1
metasyntactic
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Default How aggressive should the vortex be on my stir plate?

Should I just ramp it up and let it hit the stir bar, and if not, how vigorous should it be?

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Old 02-24-2013, 10:15 PM   #2
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Not very vigorous at all just enough to keep the yeast in suspension.

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Old 02-24-2013, 10:25 PM   #3
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Too much can generate too much heat, just enough to keep the yeast suspended and pull some O2 in

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Old 02-25-2013, 04:18 AM   #4
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It is a common error to want a big vortex, the commercials all show them, after all!

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Old 02-25-2013, 01:20 PM   #5
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Just a small dimple on the top is all you need.

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Old 02-25-2013, 02:10 PM   #6
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I let it suck in some air. I want to see small bubbles of air being swirled around the starter.

Kai

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