I apologize for self-promotion. But I liked this article because they recorded the interview and printed it as-is. Often I cringe at these articles thinking, "That's not what I said". This article is what I said.
Alan, Very interesting read, you should be rightfully proud of your successes. Thanks again for the tips on making the SR500 bean chamber cone, I think you could sell quite a few of those as well if you wanted to. I'm hoping Mark won't have a problem with this- Your thread continues to be a source of help to Aeropress users, and I don't believe promotion is your motive or intent here.
A rather detailed history of Alan, the Aerobee, and the Aeropress. CG (and this thread, why I think may be the second longest thread on CG, not the longest) gets a nod; probably best we leave some of the more heated debate in this thread regarding the topic of "espresso" behind us though ;-)
Something I meant to post a while back to this thread but forgot (I don't know if anyone else ever posted it); A device like the aeropress was invented by the Chemex company in the late 1940s / early 1950s. It's actually quite similar in function and design to the aeropress. Check it out. It's the "Tubadipdrip" from Chemex. Besides the photo below, you can see it in the right side of this photo with the Chemex inventor.
From the descriptions I am able to find the Tubadipdrip functioned more like a long tubular strainer. Doesn't seem to form a seal or involve piston action. Cool to read about "slum-bum" though. Seems to have been another inspired inventor.
"Tubadipdrip consists of two aluminum tubes, the inner one having a perforated bottom. To make tea, tea leaves are put into the inner tube, which is plunged in and out of the water filled outer tube. The Tubadipdrip also makes coffee, cocktails, aerates milk or water."
The photo shows the inner tube held above the outer tube and liquid streaming out of the perforated bottom.
It reminds me of the many perforated tea strainers that are on the market. There is also a variation on the French press available which has a finely perforated stainless steel tube.
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