[Homeroast] Vac Pot snap crackle pop

Kirk Janowiak kirk at angelwoodcreative.com
Tue Mar 11 12:25:31 CDT 2014


Ben said it best. As a long-time user of glass labware, even in the best
borosilicate glass, "shift happens" and old glassware will seem to
"spontaneously" crack under normal use.
So sad when an experiment is ruined or when you loose a batch of nicely
roasted quality coffee.

Kirk

On Tuesday, March 11, 2014, Jason Brooks <brookswv at gmail.com> wrote:

> I'm not necessarily the science type, but any 'stress' on the glass
> recently (eg, bumped)? What kind was it?
>
>
> On Tue, Mar 11, 2014 at 10:33 AM, Dennis True <dennist3 at gmail.com<javascript:;>>
> wrote:
>
> > ok so my Vac pot which sees 5-7 pots a week off and on for the last 6
> years
> > was brewing a pot and everything was fine about 1/2 way thru the draw
> down
> > it started popping and snaps etc...     I pulled the top and got the
> coffee
> > I could out and took a look I now have a fat cresent crack on it
> >
> > I know we got some sciency types here can anyone tell me why this
> happened?
> >   grind was same as last 200 or so takes about 45 sec-1 min for draw down
> >  heat was same stove on Med until water was 1/2 up then turned off and
> the
> > remainder coasts up  water is up for 1 min-1.5 min then I move it off of
> > heat on to a cloth placemat  just like every day
> >
> > thoughts?
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