Espresso at home, dialed in

Espresso is the most rewarding and the most finicky way to brew. The good news: you only need one starting recipe and a little discipline to get consistently good shots at home.

A starting recipe

Begin with a 1:2 ratio: 18g of coffee in, 36g of espresso out, in about 25 to 30 seconds. Weigh your shot, it is the single fastest way to improve.

1. Grind fresh and fine. Espresso lives and dies by the grinder, so this is where consistency matters most.
2. Distribute the grounds evenly in the basket, then tamp level with firm, repeatable pressure.
3. Pull the shot and watch the flow. Gushing, fast, and pale means grind finer. Dripping, slow, and dark means grind coarser.
4. Change one variable at a time until 18g in gives you 36g out in 25 to 30 seconds.

Your machine needs love too

Most bad shots at home are really a maintenance problem. Backflush with water weekly, descale every month or two depending on your water, and replace the group gasket when shots start to channel or leak around the portafilter.