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Old 02-22-2011, 03:47 AM   #1
Daniel82
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Aug 2010
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I have just finished my DIY stir plate from http://www.homebrewtalk.com/f51/my-s...y-build-86252/ and I had a question about what kind of vortex I need to get the most out of my starters.

First off I have a 5.7v power adapter. While that spins the bar fast while alone on my stir plate, when its it my 2L flask it only makes about a 1" dimple in the water. The spin seems to be fairly balanced and isn't being thrown.

My question is do I need a big vortex to get great starters? And because I simply want one anyway, do you think its my power supply or perhaps my magnets.

I have worked with the spacing and I beleive that is about as good as it will get. Thanks in adavance

 
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Old 02-22-2011, 03:51 AM   #2
weirdboy
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No. A slight dimple is plenty.

 
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Old 02-22-2011, 04:09 AM   #3
passedpawn
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No vortex necessary, but I like one anyway. I pull a tornado-like vortex all the way down my 4L flask. You can do this with any size stir bar. But you need the bar to spin fast. So, try some higher-voltage supplies on your plate.
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Old 02-22-2011, 04:23 AM   #4
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Keep a small vortex so you can easily see that it's spinning. I aim for about a half inch. There really is no need for a tornado. Although, there's nothing wrong with it.

Oh jeez. The tornado comment wasn't directed at you pawn. It was just timing.

 
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Old 02-22-2011, 01:01 PM   #5
Daniel82
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Aug 2010
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ok good to know its fine to use till I find a suitable power supply to boost it a bit

 
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Old 02-22-2011, 01:02 PM   #6
passedpawn
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Quote:
Originally Posted by itsme6582 View Post
Keep a small vortex so you can easily see that it's spinning. I aim for about a half inch. There really is no need for a tornado. Although, there's nothing wrong with it.

Oh jeez. The tornado comment wasn't directed at you pawn. It was just timing.
It's OK, I agree.
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Old 02-22-2011, 05:08 PM   #7
Atl300zx
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I agree, small vortex is all that is needed. there is a link in my sig for my build and you can see the vortex is small. I used this last week and it ran for days with no issue and produced quite the population of yeast compared to the "swirl it every time i walk by" method.
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