4 ms·
About the Aeropress, I guess the question is: When I press it down (in my case, using the elbow for added pressure) how many bars can a typical user reach?
by BlandDuck 4y ago
About the Aeropress, I guess the question is: When I press it down (in my case, using the elbow for added pressure) how many bars can a typical user reach?
- anon84873628 4y agoMaybe 1 bar. You need a big lever or pump to get more than that. Check out the Flair or Wacoco brands if you want entry level manual espresso.
- DoubleFree 4y agoLet's do a little calculation. For an upper bound, let's say you press your full weight onto it and the coffee grounds' resistance is not the limiting factor. That's maybe 90kg, times the acceleration of gravity, for about 900 newtons. That force is applied to a pi*(30mm)^2 or ~3^-3 m^2 area. That gives us a pressure of 900/3e-3 = 3e5 Pa or 3 bars.
- klausa 4y agoGetting over 1 bar gets you to a spray of coffee that sprays everywhere: https://youtu.be/Qz_GZpzpst4?t=500 https://youtu.be/Qz_GZpzpst4?t=500
- dmonitor 4y agowhy does he have it so far away from the cup?
- valarauko 4y agoHoffmann measured this with a pressure sensor modded aeropress - most typical brews would not exceed half a bar.
- valarauko 4y agoJames Hoffmann answered this with a modded aeropress with a pressure sensor: a typical aeropress brew is in the range of half a bar. The max he could achieve was 1.5 bars, but like he says, no one brews like that. He also found anything past 0.5 bars began to taste awful. https://www.youtube.com/watch?v=jBXm8fCWdo8 https://www.youtube.com/watch?v=jBXm8fCWdo8