With the introduction of the electric drip coffee maker for the home in the early 1970s, the popularity of percolators plummeted, and so did the market for the self-contained ground coffee filters. In 1976, General Foods discontinued the manufacture of Max Pax, and by the end of the decade, even generic ground coffee filter rings were no longer available on U.S. supermarket shelves.
“This little espresso maker is just awesome! It is fun to use and always makes a great cup of espresso. I’ve used it to make macchiatos, affogatos, and as a espresso shot to my coffee. The simplicity of this stovetop espresso maker is amazing. You won’t get as much crema as you would with an espresso machine but the aroma and taste are unmatched. I’ve had the three-cup model for a few months now, and I use it often. I’ve had no problems with it at all. After it use I just rinse it with warm water and let it air dry.”
While it’s hands down the best cheap espresso machine on the market, Mr. Coffee isn’t on the same level with the Rocket or the Breville. Its shots lack the richness and complexity of true espresso, tasting more like a full-bodied Americano. Its layer of crema disappears quickly, and its shots don’t offer the gorgeous, gradient colors that you’d get from a machine like the Rocket. That said, it ranked fourth for taste among the machines we tested, so it’s still a solid option if you don’t need the finest coffee quality the market has to offer.
If you're ready to pull the trigger on buying an espresso machine, be prepared to shell out a little cash. Espresso machines can be wildly expensive. Rightfully so. Pulling a perfect shot requires precision: the machine must maintain both precise temperature and stable pressure throughout the brewing process. Achieving this stability is difficult and requires complex machinery, which is why you can find machines for upwards of 6,000 dollars.
The principle of a vacuum brewer was to heat water in a lower vessel until expansion forced the contents through a narrow tube into an upper vessel containing ground coffee. When the lower vessel was empty and sufficient brewing time had elapsed, the heat was removed and the resulting vacuum would draw the brewed coffee back through a strainer into the lower chamber, from which it could be decanted. The Bauhaus interpretation of this device can be seen in Gerhard Marcks' Sintrax coffee maker of 1925.