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Old 09-11-2011, 09:00 PM   #1
Daver77
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Feb 2011
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My erlenmeyer flask cracked today when I had it on the stove trying to boil some wort for a starter.

It hadn't come to a boil yet when I hear a crack. Nothing spilled but the crack is 7 inches long.

I was under the impression it was ok to put it on direct fire what do you think I did wrong here?

This happen to anyone?

Maybe I bought a cheep one?



 
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Old 09-11-2011, 10:04 PM   #2
Greyhound
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Nov 2008
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I was also under the impression that this was safe to do with a gas stove, but not on an electric unless you use some sort of heat diffuser. By using the word "fire", I'm assuming you heated this on a gas burner?


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Old 09-11-2011, 10:26 PM   #3
Daver77
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Yeah Gas stove.

 
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Old 09-11-2011, 11:08 PM   #4
emjay
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Jan 2011
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They are heat-resistant but NOT heat-proof.

You should always start off with the flame as low as possible and *slowly* increase it... I usually stop when I get to about the halfway point on my stove.

 
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Old 09-12-2011, 12:22 AM   #5
EarthBound
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Why risk boiling it in the flask? Could you not just boil in a pot and pour it into a sanitized flask?
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Old 09-12-2011, 12:29 AM   #6
Daver77
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Feb 2011
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What's the point in spending 20 bucks on a flask if your going to boil water then pour it in. Might as well get a 3 dollar clear half jug.

I seriously thought the idea of the flask was to have the simplicity of throwing the wort and water into the flask boil and viola!

 
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Old 09-12-2011, 12:42 AM   #7
emjay
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Quote:
Originally Posted by Daver77
I seriously thought the idea of the flask was to have the simplicity of throwing the wort and water into the flask boil and viola!
It is. Pouring into a sanitized flask is silly.

 
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Old 09-12-2011, 01:09 AM   #8
Germelli1
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Jul 2010
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Quote:
Originally Posted by EarthBound View Post
Why risk boiling it in the flask? Could you not just boil in a pot and pour it into a sanitized flask?
Because that is far LESS sterile. Heat is a much more effective sanitizer than our chemicals. If you don't boil in the flask then you have to sanitize the flask separately, as well as a funnel if your pot doesn't have a spout!
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Old 09-12-2011, 02:26 AM   #9
kappclark
 
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Quote:
Originally Posted by EarthBound View Post
Why risk boiling it in the flask? Could you not just boil in a pot and pour it into a sanitized flask?
I boil the water in the flask first (1.7L) then transfer to pot with DME...boil in pot 10 mins, then transfer back to 2L flask to chill..I have had too many boilovers in the flask. If I had a 3L flask, I would do everything in the flask.
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Old 09-12-2011, 02:27 AM   #10
emjay
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Quote:
Originally Posted by kappclark

I boil the water in the flask first (1.7L) then transfer to pot with DME...boil in pot 10 mins, then transfer back to 2L flask to chill..I have had too many boilovers in the flask. If I had a 3L flask, I would do everything in the flask.
Fermcap, buddy. Look into it.



 
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