Thanks CJ for that. I did read that particular thread & searched when there on the HB forums for any & all info about the ss filters & the AeroPress in general too.
I just invert brewed two 10 oz cups earlier in the morning, & about 5 minutes ago just brewed three 10 oz topped up mugs. My coffee was blooming like crazy, but I managed in three small 2 oz top ups of 210°F water from the kettle & stirrings to mix & break/collapse down the bloom to a managable level & brewed @ 195°F.
These were very good clean Colombian Supremo cups, but my guesstimated coarseness level from the 2 cup to the 3 cup grind was slightly too fine for the longer time I took (2½ minutes)., so I'll open up the Preciso a few more clicks.
I love the AeroPress & I should of bought one years ago!
jpender Senior Member Joined: 11 Jul 2011 Posts: 607 Location: California Expertise: I like coffee
Grinder: OE LIDO Vac Pot: S/S Moka Pot Drip: Aeropress
Posted Sat Nov 17, 2012, 1:29pm Subject: Re: Aerobie Aeropress
Alan, with regards to the crazing, could inverted brewing lead to this? What about preheating the cylinder with boiling water?
The crazing on mine is coincident with where the seal supported the whole enchilada during an inverted brew (near the "4"). The plunger first stopped sealing in those first few centimeters just below this point. Could the crazing be a sign that the cylinder has widened slightly at the end due to stress?
One easy trick for a marginal seal is to run hot water over it, or immerse it in hot water for a few seconds just prior to pressing. The hot water expands it and lubricates it.
Thanks for alerting me to this new filter. I have both of the Coava filters, and surprisingly I prefer the original to the fine. Ordered the Kaffeologie yesterday and am looking forward to some experimentation with it.
I realized something yesterday that should have been obvious I suppose. The crazing on my Aeropress is deep enough that the plunger is slipping at that point because air is channeling through the crazing grooves. No matter how much I pre-warm the plunger this happens. I watched some bubbles of air and water sneak past at the bottom of the crazed area. This is only a minor issue with using the Aeropress -- it really only matters if the unit is filled really high or the bloom is very large (or if I try to use it inverted).
But the grooves also hold oils and coffee residue and are really difficult to clean. I need a toothbrush and a lot of time to scrub them. So I'm going to throw this 1.5 year old Aeropress into the recycle bin for that reason alone.
I'm still wondering exactly how the crazing occured. Physical, thermal, and/or chemical stress? Will it happen again with my next AP?
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