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10-20-2010

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11-04-2013 7:33 PM

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  • Posted in thread: borosilicate flask on a gas stove: any bad stories? on 09-26-2013 at 02:46 AM
    I think lab glassware is graded based on ASTM standards and tolerances. (Any lab rats here who
    might be able to confirm/clarify this?) The so-called "student grade" are probably factory
    culls that hav...

  • Posted in thread: borosilicate flask on a gas stove: any bad stories? on 09-25-2013 at 02:53 AM
    Watch out, as a lot of those low-cost Erlenmeyer flasks sold by brew stores and online lab
    suppliers are "student grade" (they tend to be lower quality with minor flaws, like scratches).
    Those flaws c...

  • Posted in thread: borosilicate flask on a gas stove: any bad stories? on 09-24-2013 at 03:13 AM
    Direct heating of glass vessels is always risky. The thicker the glass and the larger the
    vessel, the more time it takes to disperse the heat evenly. Most failure comes from thermal
    stress. The shape ...

  • Posted in thread: borosilicate flask on a gas stove: any bad stories? on 09-18-2013 at 11:57 PM
    If its quality glass, you're fine. That type of glass is used over top of Bunsen burners all
    the. You can boil water in plastic bottles so that tells you something about the actual temp
    it's getting t...

  • Posted in thread: borosilicate flask on a gas stove: any bad stories? on 09-18-2013 at 04:04 AM
    So, I've got a 3L borosilicate flask and a gas stove. It takes a while for the thing to come to
    a boil.I know that borosilicate flasks are supposed to be okay on a gas stove because of the
    even heatin...

  • Posted in thread: 1st season Centennials- onion/garlic odor on 10-25-2012 at 04:35 AM
    Meh. I picked them too late? ****.I picked a few ounces much earlier and found they only
    smelled of grass.I decided to let them age on the vine quite a bit more, and not pick them
    until there was slig...

  • Posted in thread: 1st season Centennials- onion/garlic odor on 10-23-2012 at 03:44 AM
    I planted 2 rhizomes of Centennials and 2 of Cascade this last spring, obtained from
    freshops.com. The Centennials took off like rockets, mainly (I think) because of the greater
    sun exposure vs. the C...

  • Posted in thread: adding sugar after primary fermentation is done on 10-15-2012 at 10:05 PM
    I have absolutely nothing to contribute to this thread, but made me laugh my a$$ off!The rest
    of you can explain why headspace is important to the OP. I love this place on nights when I
    stay up past m...

  • Posted in thread: adding sugar after primary fermentation is done on 10-12-2012 at 03:29 AM
    I thought about adding it in water, but 1) I have very little headspace left in these 6 gal.
    carboys 2) I didn't want to caramelize the sugar by really heating it with a minimal amount of
    water

  • Posted in thread: adding sugar after primary fermentation is done on 10-11-2012 at 02:46 AM
    Okay, I added it too late. Fine.Back to the original question: do I need to swirl the carboy to
    get all the sugar to dissolve, or will the yeast activity create enough turbulence that it will
    dissolve...

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