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.
Warning: If you drop a stir bar into boiling starter, it will boil over
- Thread starter jetmac
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Boil with bar in there. It's OK.
Here come the nucleation site posts...
Here come the nucleation site posts...
You're not the first one to find out the hard way that the bar goes in first.
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or spray with a little star-san before you drop it in....
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.
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...
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.
mariojr
Well-Known Member
Oh man I have done this more than once. You would think I learned my lesson the first time!
I laughed at that. I usually learn the first time. But not always.
I don't remember much of my high school Chemistry II classes, so it's always fun to see things like nucleation points come up in real life. As I cleaned my stove of burnt wort, I tried to remember that.
Sardoman
Well-Known Member
Haha, yeah I learned that the hard way too. But it was yeast nutrient, not a stir bar in my case. We autoclave stir bars all the time and it doesn't affect them at all.
I hope you were not burned.
I hope you were not burned.
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