[Homeroast] Could it be my altitude - 6550 ft
doughoople at gmail.com
Mon Apr 9 18:12:03 CDT 2012
Contrary to intuition, coarser grind generally causes more stalling
problems, not fewer, with the glass-rod vacpot. Nevertheless, IMHO, coarser
grinds yield better flavor with the glass-rod vacpot, so it's worth the
trouble to figure out how to make it work.
Try the burst of heat just before drawdown, making sure it's applied long
enough to jiggle the glass rod (shouldn't be any more than 5-8 seconds,
I'd be VERY surprised if that didn't clear things up.
How dark was the commercial coffee you were brewing with? Makes a huge
difference with this brewing method.
On Tue, Apr 10, 2012 at 2:27 AM, g paris p <pchforever at gmail.com> wrote:
> I am at 6500 ft and have never found a problem like that; I do not use that
> method all the time
> but when I have for company it seems fine.
> If you continue to stall I would grind like you would for a French Press,
> nice big grind.
> bet is is the grind, too fine.
> On Sun, Mar 4, 2012 at 1:44 PM, Phil Palmintere
> <phil.palmintere at gmail.com>wrote:
> > Well, I've failed about a 6 times in a row now with the Yama/Cona rod
> > combination. This last time, instead of home-roast, home-ground, I used
> > store-bought pre-ground coffee - thinking a more consistent grind (less
> > fines) might be the key. I'm getting the same result - it stalls fairly
> > quickly.
> > Now I'm wondering if maybe it is my altitude. In the winter, I'm here in
> > Park City UT at about 6550 feet elevation. Since a vacuum pot in part
> > works
> > based on the pressure differential between the two globes, I'm wondering
> > atmospheric pressure this high just isn't enough to "push" the liquid
> > coffee
> > from the top globe into the bottom past the Cona rod.
> > It seems to work OK with a cloth filter - it may start to stall, but a
> > quick
> > stir of the top globe coupled with perhaps a bit of scraping the
> > filter with a teaspoon frees it up.
> > While winters are at 6550 feet, summers are in the foothills above Las
> > Vegas
> > at about 3150 feet of elevation. (these are according to google earth)
> > Have any of you found difficulty using a vacuum pot at elevation?
> > Thanks
> > Phil
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