Stir Bar - 50 mm


SKU# 7063

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Add to the flask when propagating yeast on a stir plate. 50 mm size is best for 2000 or 5000 ml flasks.


Availability: In stock

Stir Bar - 50 mm

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  • Stir Bar - 50 mm
Product Details

Add to the flask when propagating yeast on a stir plate. Can be boiled in the flask along with starter wort. Always a good idea to have spares on hand in case you pour the stir bar into the fermenter along with the starter! 50 mm size is best for 2000 or 5000 ml flasks.

Additional Information
Support Documents:No
2.7 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
great stir bar
used the one that came with my maelstrom stir plate and found that I needed a bigger one. this is perfect for my 1 gallon starter.
October 30, 2015
spin baby spin
spins up as advertised. Prefect for my 2L flask.
August 18, 2016
Great Stir Bar
I bought a few of these. My friend and I both love them.Quiet and I have no problem with it throwing on my home made stir plate. Drop it in, put it on the plate and turn up the speed it naturally centers and creates a beautiful vortex. Not sure why others have had issues.Works great for me and my mentor brewer.
November 19, 2011
Works Great
I'm real cheap I guess so I built my own stir plate and used this stir bar. I can easily put a vortex straight to the bottom of a 1200 ml of water in a starter due to it being more viscous it makes it to the bottom just not a violent.
July 11, 2012
Great for large flasks but....
I have only used it twice so far and it's worked but because of its size it gets thrown off the magnet a lot. I'm sure there is a trick to it but it's mildly annoying having to reset the magnet bunch of times while stirring a yeast starter
June 14, 2016
Does the job too!
I purchased this along with the yellow cylinder stir bar with the centering ring. This stir bar does not throw and makes less noise once I reduced the voltage to my home made stir plate. I recommend it.
March 5, 2011
Echoing Tyler's sentiments...
As Tyler said below, this stir bar is more or less useless in my 1500mL flask + NB stir plate. As soon as it comes out of this starter flask, it's heading to the waste bin.
July 16, 2011
Even on the slowest speed in a 2L flask it throws. Would stay on for a revolution. Put my small stir bar in it that has the centering ring, and no issues. I may try the larger yellow with the centering ring. Dont buy this.
January 13, 2012
This Stir bar has Corners
I figured all stir bars were cylinders, allowing them to spin freely on a stirplate(less surfae contact with the glass=less friction=better stir bar.This bar is a rectangle with partially rounded ends. It does not stir consistantly and jumps around in the flask. It creates no movement in a 1500ml starter and is LOUD. Switched back to my regular 25mm cylinder stir bar. Terrible product. DO NOT BUY.
February 18, 2011
Doesn't work
I lost my round 25mm stir bar so I went to the LHB shop to replace it. I've been having the same problems everyone else has been having with this item, so I'll be ordering the round 25mm ones with my next batch.
February 20, 2014
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