The original AeroPress and the Go have the same cylinder and cap diameter but the flange that supports the AeroPress on your cup is smaller on the Go. The Go can sit on a cup with a maximum inside diameter of about 3.25” whereas the original AeroPress can sit on a cup with a maximum inside diameter up to about 3.75”.
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- next post: I have a "pressing question" as a curious physics teacher: You have said pushing harder forces the coffee grains more into the filter which slows the flow of coffee into the cup. I have a hard time with this explanation. Pressing harder does not push downward on the grains. It increases the ambient pressure in the liquid which would be felt by all sides of each grain. A grain floating in the liquid would not be forced to the bottom by this process. It will go to the bottom due to gravity, but not increased ambient pressure. I can concede that there may be other reasons to prefer one pressure over another, but this explanation does not work for me. Have you, for instance, done objective testing of pressing time under different pressures? If there is a turn-around point in flow rate as a function of pressure, that would be interesting to know, but the explanation would have to be a bit more subtle. (None of this affects my appreciation for your invention, by the way. I love Aeropress coffee.) I am genuinely interested to know why coffee brewed at higher ambient pressure tastes richer. That would apply to high steam pressure in an espresso maker as well. I tentatively think of the Aeropress as an espresso maker simulator…pressure by different means. – From David C.