Tamp: (v.) to precisely press your espresso grounds into a perfect puck.
The key to really tasty espresso is even extraction. Hot water is being forced through super-fine coffee grounds at 9 bars of pressure, so every little bump and valley in the surface of the coffee grounds affects the way the espresso tastes. This is why we tamp. The tamp levels out the grounds and presses them down evenly, forming a consistent puck. When tamping, it’s important to have the correct form. Our baristas tamp and pull hundred of espresso shots a day, and repetitive stress injury is so real. When tamping, your wrist and arm should be a straight, upward extension of the tamper, with your elbow at a 90 degree angle (pictured).
3 comments
You are so right that repetitive stress injury is real. I haven’t been a barista for years, but my wrists still suffer the consequences! I wish I had been taught the more ergonomic alignment. Cheers!
How strongly should you tamp? I’ve seen recommendations of 30lbs of pressure, but I have not had good results with a very hard tamp.
Thanks for espresso tips!
We like this old adage: “Push until you feel the coffee push back.” Your tamp should be hard, but you’re right, a hard tamp doesn’t always make the best espresso. You want the puck to compact and be even, but not so compacted that the water can’t flow through. Hope this helped a little!