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-   -   Stir plate/stir bar problem (http://www.homebrewtalk.com/f51/stir-plate-stir-bar-problem-295516/)

RUNningonbrew 01-17-2012 01:36 PM

Stir plate/stir bar problem
 
I made my own stir plate which is awesome, but I use a growler to make my starters and the stir bar won't stay on the bottom because it is slightly concave so every time I start the stir plate it falls off, anyone have any suggestions other than buying an Erlemeyer flask? Will a different stir bar work, the one I picked up at the LhbS is smooth and about 1 inch, don't know if a larger one will work or one that is octagon. Thanks.

Sardoman 01-17-2012 01:42 PM

No stir bar will work if it is supposed to be sitting on top of a dome of glass. You'll have to get a growler/bottle with a flat bottom or a flask. There has been some discussion on here about people using glass apple cider jugs with some success. I guess they must have fairly flat bottoms.

stratslinger 01-17-2012 01:44 PM

Check out this link, scroll halfway down to find some dumbbell shaped stir bars - those might work well in a growler like you describe.

mikerobrew2354 01-17-2012 05:21 PM

My erlenmeyer flask has a slightly concave bottom and would throw off a standard stir bar. I switched to a barbell shaped stir bar and haven't had any more problems.

Ryush806 01-17-2012 05:31 PM

Quote:

Originally Posted by stratslinger (Post 3674116)
Check out this link, scroll halfway down to find some dumbbell shaped stir bars - those might work well in a growler like you describe.

I tried this. They do not work at all. It's almost impossible to get them to stay in the middle of the growler while you set it down on the stir plate because they can roll. Then if you do manage to get it, it gets thrown just as easy as a regular stir bar. Save your money for sure.

RoadKing 01-17-2012 06:49 PM

Try 2 keg dip tube O rings. Space them out evenly from the center of stir bar, Hopefuly you can find a sweet spot that works.

GermanRockit 01-17-2012 06:53 PM

Upgrade to a 1 gallon glass jug. It has a flat bottom. They are less then $5 at my homebrew store.

maffewl 01-17-2012 06:56 PM

You could just go to Wally World and pick up a 1 gallon glass jar... I think they run like $7.

Tinga 01-17-2012 07:58 PM

Quote:

Originally Posted by stratslinger (Post 3674116)
Check out this link, scroll halfway down to find some dumbbell shaped stir bars - those might work well in a growler like you describe.

might as well buy a flask for that kind of money

stratslinger 01-17-2012 08:43 PM

Quote:

Originally Posted by Tinga (Post 3675372)
might as well buy a flask for that kind of money

Fair enough point - I wasn't really paying attention to the price, to be honest - that was the first thing google gave me. I'm pretty sure there are cheaper suppliers out there though.


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