Author Topic: Dumbbell Stir Bars...Source?  (Read 1304 times)

Offline roguejim

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Dumbbell Stir Bars...Source?
« on: May 01, 2012, 06:08:33 PM »
I have a couple of stir plates made, but before I plunk down the money for a couple of erlenmeyer flasks, I have some 1gallon pickle jars that I'd like to try.  Since the jars have  concave bottoms, I'm told I should use dumbbell stir bars.  The ones that I've found run $19 each!  Any cheaper sources?

Offline a10t2

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Re: Dumbbell Stir Bars...Source?
« Reply #1 on: May 01, 2012, 06:13:08 PM »
Have you checked to see if a regular stir bar works? They do with mine.
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Offline roguejim

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Re: Dumbbell Stir Bars...Source?
« Reply #2 on: May 01, 2012, 06:27:58 PM »
No, I haven't.  Are you saying your jars have concave bottoms?  That would be awesome if a regular stir bar would suffice.  What length vstir bar do you use?  Does your stir bar have the ring around the center.

Offline a10t2

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Re: Dumbbell Stir Bars...Source?
« Reply #3 on: May 01, 2012, 07:29:16 PM »
Yeah, I just use gallon jugs and 1/2 gal growlers for my starters. The bar is 25 mm with a center ring. http://www.coleparmer.com/Product/MONO_MOLD_small_sup_reg_sup_small_Standard_Stir_Bar_with_Spinning_Ring_1_L_x_3_8_dia/EW-08550-00

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Offline tschmidlin

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Re: Dumbbell Stir Bars...Source?
« Reply #4 on: May 01, 2012, 11:09:42 PM »
We got ours from http://stirbars.com/

I just noticed they have a $50 minimum order, but we did a club buy.  Maybe that's an option for you.
Tom Schmidlin

Offline gandelf

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Re: Dumbbell Stir Bars...Source?
« Reply #5 on: May 02, 2012, 03:07:29 AM »
I have one, I used it once; too noisy. Pm me and I will send it to you free.
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Offline poobah58

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Re: Dumbbell Stir Bars...Source?
« Reply #6 on: May 09, 2012, 03:03:24 AM »
If it's too noisy or the bottom is concave, put an o-ring on each end. The ones that are used for the dip tube of a Corny keg work perfect.
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