The golden rules of espresso

Is your morning espresso tasting a bit sour or overly bitter? Pulling the perfect shot is a science. If you’ve invested in high-quality beans and a machine, we’ve distilled the "barista bible" into a simple, repeatable recipe.

Great coffee starts with chemistry. You can’t get great results from stale beans or "hard" tap water. Use beans roasted between 2 weeks and 1 month ago. This is the "sweet spot" for degassing. If your water is too hard, it scales your machine; too soft, and the coffee tastes flat. Aim for 150ppm.

Grind size is your primary lever for flavor. You want a fine, uniform, powdery texture. Use a WDT tool for a level distribution. A level surface prevents channeling. Tamp evenly and uniformly. Maintain a ~2mm headroom gap between the puck and the shower screen. Always pre-heat your portafilter and cups.

Once you engage the pump, the magic happens. Your machine should hit 9 bars of pressure. If your 36g yield finishes before 25 seconds: grind finer. If your 36g yield finishes after 30 seconds: grind coarser.

Troubleshooting your shot:
Too Sour? Your water might be too cold or your grind too coarse.
Too Bitter? You’ve likely over-extracted. Try a slightly coarser grind or a shorter brew time.
No Crema? Check your roast date. If the beans are older than a month, the CO² is gone.

Mastering espresso is about consistency. By sticking to the 18g dose and 2:1 ratio, you remove the guesswork and start enjoying the best coffee of your life.

Ready to upgrade your setup? Browse our espresso essentials collection here.