[Homeroast] Cory gasket problem (and how I fixed it)

Barry Luterman lutermanb at gmail.com
Tue Apr 26 09:48:18 CDT 2011


The Yama works well with a cory rod

On Tue, Apr 26, 2011 at 7:30 AM, Jason Brooks <brookswv at gmail.com> wrote:

> Thanks as well Ivan.  I was contemplating a Yama to replace my Cory
> DRU/L.  But I hate to part with the beast.
>
>
> Jason Brooks
> brookswv at gmail.com
> http://javajeb.wordpress.com
>
>
>
>  On Mon, Apr 25, 2011 at 6:05 AM, Jeff Bensen <jbensen-0007 at xemaps.com>
> wrote:
> > Sci -
> >
> > Thank you for the excellent feedback.
> >
> > I have an old Cory DRU/DRL and recently placed an order for the same
> gasket
> > from dayseal. I'm assuming I'll have a similar issue, but I'll let you
> know
> > when it gets here.
> >
> > -- JB
> >   Drinking Peru FTO APAVAM Coop Typica, C+, 10 days post-roast, via
> > Aeropress
> >
> >
> >
> > At 12:03 AM 4/25/2011, sci wrote:
> >
> >> Ok, I got the new "Cory D" gasket which fits my Cory DXU/DXL model with
> >> the
> >> glass rod. http://www.dayseal.com/services.html These don't look like
> >> factory made seals, but where else are you gonna find a Cory seal? I
> >> yanked
> >> the old rock-hard gasket off and put on the new silicon gasket. It
> didn't
> >> look exactly the same, but it fit, roughly, kinda.
> >>
> >> So, we're off to the races to make a pot of Ethiopian Genema Harar. I
> put
> >> in
> >> 48 oz of water (up to the fill line) and ground 72g of coffee. When the
> >> water reached boiling, I backed off the heat, and put the upper chamber
> >> on.
> >> Here's where the problems started. The seal would go into the lower pot,
> >> but
> >> not all the way; I already knew this from a dry fitting. When pressure
> >> built, the seal squeezed out, allowing the steam to blow out the side of
> >> the
> >> gasket. Ugghhh!!! The water went up as long as I added pressure to the
> >> upper
> >> chamber to keep the seal; remove my hand pressure, and the water went
> back
> >> down. Not good. Not at ALL!
> >>
> >> I emailed the fellow that makes them. He did respond, but with advice
> that
> >> didn't really help (put vegetable oil on it, which IMHO made the problem
> >> worse). He did offer to refund my $25 for the seal. But I'm in this game
> >> for
> >> results, not trips to the post office.
> >>
> >> Upon very close inspection, I noticed that the third ring up from the
> >> bottom
> >> of the seal was too thick. It was preventing the upper chamber from
> fully
> >> seating into the lower. Hence the pressure squeezed it back out. No
> amount
> >> of reasonable down pressure would compress the silicon to make it fit.
> It
> >> was just too big. Somewhat determined to make it work, I got out a razor
> >> knife and tediously cut that entire ring down to the base level of the
> >> rubber. Now the offending ring was gone. WaahhLaah! The upper chamber
> will
> >> seat, and hold pressure. It works. I'm happy now. But for $25 for a
> chunk
> >> of
> >> rubber, you don't expect to have to make irreversible modifications.
> >>
> >> Upshot: unless you just want an old Cory, why bother. Just get a Yama or
> a
> >> Bodum Santos. I have about $45 and a couple of hours of tinker time
> >> invested
> >> in the Cory, and sure, it has the glass rod. And I'm happy. But if I
> knew
> >> then what I know now, I'd just jump on SM.com and get a new Yama or find
> a
> >> Bodum Santos (non-electric). If your rich, get the Cona and don't look
> >> back.
> >>
> >> FWIW,
> >>
> >> Ivan
> >
> >
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