Minimum Viable Arduino Project: Aeropress Timer

The idea is that the more pressure you use, the more unwanted materials like fines and oils will get though the paper. So if you press slowly and stop when you hear a hiss, you should have a better brew.

It does make sense, if imagine pressing through in 5 seconds vs 30 seconds, that the paper filtration would work better in the slower press. But I'm not sure if anyone has scientifically measured this.

Actually wait, it's coffee. Someone has definitely scientifically measured it and probably published a two hour YouTube video with their results.

I've had good results from the James Hoffman recipe [0], although I brew inverted. You can push the plunger down with just the weight of resting your arm on the plunger. For something very different, you can brew something not-quite-espresso using the Fellow Prismo cap for the Aeropress.

0: https://www.youtube.com/watch?v=j6VlT_jUVPc

Personal opinion is that the whole point of aeropress is that you don't need to follow any recipes to get a good result. The parameters are extremely flexible to the point of being close to foolproof. Start with good beans and water. Grind anywhere between French press and very fine pourover level. Brew anytime between 1 minute and 8 minutes. Add anywhere between 100ml and 200ml of water. Press reasonably slowly.

The results will always be good. Maybe not the level you'd get with extremely high quality light roasted beans and a very careful pourover technique, but maybean aeropress isn't the best brewer for those beans in the first place.