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Old 06-21-2012, 04:29 AM   #1
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Default DIY stir plate problems, cheap Erlenmeyer Flask alternatives?

So,
I just followed the cheap DIY easy stir plate thread, got my stir plate working, however my problem now is that I tried using it with a growler, but the growler has a rounded bottom. I ended up getting a larger stir bar, that may be my problem? But, now when I try it, the bar just sits on the side of the growler, because the bottom is curved.

Has anyone found a cheap alternative to the $30 Erlenmeyer Flask? Possibly some glass that is large and has a flat bottom?

Thanks

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Old 06-21-2012, 12:27 PM   #2
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A large glass kar with a thin flat bottom. Try going to the warehouse store and see if they have any gallon pickle jars with a flat bottom.

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Old 06-21-2012, 12:37 PM   #3
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Quote:
Originally Posted by wfowlks View Post
So,
I just followed the cheap DIY easy stir plate thread, got my stir plate working, however my problem now is that I tried using it with a growler, but the growler has a rounded bottom. I ended up getting a larger stir bar, that may be my problem? But, now when I try it, the bar just sits on the side of the growler, because the bottom is curved.

Has anyone found a cheap alternative to the $30 Erlenmeyer Flask? Possibly some glass that is large and has a flat bottom?

Thanks
$30 bucks? Try $12...

http://www.amazon.com/PYREX-Narrow-Mouth-Erlenmeyer-Flasks/dp/B004XR5VMI/ref=sr_1_4?ie=UTF8&qid=1340282157&sr=8-4&keywords=erlenmeyer+flasks

Also, my LHBS has them for about ten. Look around for places locally that sell lab supplies. You should be able to find something.
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Old 06-21-2012, 12:45 PM   #4
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Know anyone that works in a lab? I got lucky. A neighbor came down to see what I was doing with my meth lab one day. Explained everything and that I was moving to Yeast Starters as my next step. Abouta week later he brought me a brand new, still taped box 2L Erlenmeyer. Said he accidentally ordered an extra one on that weeks order and that he really likes Ambers

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Old 06-21-2012, 12:49 PM   #5
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Quote:
Originally Posted by wsender View Post
$30 bucks? Try $12...

http://www.amazon.com/PYREX-Narrow-Mouth-Erlenmeyer-Flasks/dp/B004XR5VMI/ref=sr_1_4?ie=UTF8&qid=1340282157&sr=8-4&keywords=erlenmeyer+flasks

Also, my LHBS has them for about ten. Look around for places locally that sell lab supplies. You should be able to find something.
A 1L flask may be a bit small for most beers, unless you plan on stepping it up a bunch of times.
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Old 06-21-2012, 12:53 PM   #6
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I got a flower vase from Goodwill that works great on my DIY stir plate. Cost about $5.

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Old 06-21-2012, 01:56 PM   #7
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for a small starter, you could also use a pint glass if you have nothing else, however, I feel that would be less than ideal

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Old 06-21-2012, 03:27 PM   #8
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+1 on the flower vase, but get one at your local "Dollar Store".

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Old 06-21-2012, 03:37 PM   #9
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Have you played with your magnet height yet? I use domed bottom containers without any problems. I had to play with my magnet height to get it dialed in though. Also, does your stir bar have a pivot ring? That will help as well.

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Old 06-21-2012, 06:47 PM   #10
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The magnet doesn't have a pivot ring, it was just a 5$ stir bar I got at the LHBS. I was looking at the 2L flask. As I do 10 gallon batches, and I like to grow the yeast from 1 pack then pitch it, to save some money.

Good call on the flower vase, we just got one for the wedding shower. I wonder if SWMBO will let me use it. Otherwise I'll hike down to the Goodwill store.

Thanks for the idea guys

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