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Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Warning: If you drop a stir bar into boiling starter, it will boil over
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Old 01-27-2011, 03:47 AM   #1
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Default Warning: If you drop a stir bar into boiling starter, it will boil over

While making a starter, added FermCap to supress the foam and everything couldn't have been going more perfect until I dropped in the stir bar 5 min before boil was done, It set the starter off like a volcano.


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Revvy>>You shouldn't worry about ANYTHING, you didn't hurt the yeast, they know what they need to do, they want to eat all that sugar they are swimming around in. They want to pee alcohol and fart co2, it's their nature.

Bobby_M>>I flood the keg with CO2 for one minute with the lid off, rack the beer in to the bottom gently, seal it, flood it, vent it. If there's still O2 in there after that, F it.
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Old 01-27-2011, 03:50 AM   #2
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Boil with bar in there. It's OK.

Here come the nucleation site posts...


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Old 01-27-2011, 03:50 AM   #3
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You're not the first one to find out the hard way that the bar goes in first.
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Old 01-27-2011, 05:57 AM   #4
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Heard/read "wait until the end of the boil to toss in the stir bar so you don't melt it while it sits on the bottom"
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Revvy>>You shouldn't worry about ANYTHING, you didn't hurt the yeast, they know what they need to do, they want to eat all that sugar they are swimming around in. They want to pee alcohol and fart co2, it's their nature.

Bobby_M>>I flood the keg with CO2 for one minute with the lid off, rack the beer in to the bottom gently, seal it, flood it, vent it. If there's still O2 in there after that, F it.
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Old 01-27-2011, 06:09 AM   #5
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or spray with a little star-san before you drop it in....
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Old 01-27-2011, 09:29 AM   #6
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Quote:
Originally Posted by jetmac View Post
Heard/read "wait until the end of the boil to toss in the stir bar so you don't melt it while it sits on the bottom"

Isn't it made out of iron?
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Old 01-27-2011, 09:33 AM   #7
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Quote:
Originally Posted by Wiezer View Post
Isn't it made out of iron?
It's coated in teflon and I've made quite a few starters where I boiled the bar. No problems and the bar looks like it did when it came out of the packaging.
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Old 01-27-2011, 09:37 AM   #8
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Yeah there good to like 400* or some crap like that... You can put them in the pressure cooker too if you like. 15 psi for 15 min...
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Old 01-27-2011, 10:47 AM   #9
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Yep, in the lab we put the stir bars in before boiling. As someone before mentioned, it will provide nucleation sites and prevent bumping. And yea, they are fine at way higher temperatures than you'll create in brewing, so long as they're immersed in an aqueous solution. They replace boiling chips when stirring's required usually.
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Old 01-27-2011, 01:00 PM   #10
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Oh man I have done this more than once. You would think I learned my lesson the first time!


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