Wirsh Coffee Journal · Practical Guide
Espresso is a brewing method—not a bean variety, not a roast level, and not just a small cup of strong coffee. Here is the no-nonsense version of what matters when you make it at home.
What makes espresso different?
Espresso uses finely ground coffee and pressurized water to produce a concentrated beverage in a short extraction. The coffee puck, machine and grind work together to create flow resistance. You can make espresso with different beans and roast levels, but the recipe must be adjusted to suit the coffee.
A practical starting recipe
| Variable | Starting point | What to adjust |
|---|---|---|
| Dry dose | 18 g, if your basket is designed for it | Match the basket capacity |
| Beverage yield | 36 g (about a 1:2 ratio) | Shorter for more concentration; longer for more extraction |
| Grind | Fine enough for controlled flow | Move finer/coarser based on taste and flow |
| Time | Often around 25–35 seconds as a diagnostic | Not a pass/fail rule |
These numbers are examples. A small basket or very light roast may need a different recipe. Always taste the shot rather than forcing every coffee into the same time window.
Why do shots go wrong?
Very sour or thin: review grind, temperature and beverage yield. Harsh or drying: check for excessive extraction, uneven flow or an unsuitable recipe. The same flavor can have several causes, so make measured changes.
The first two things I would troubleshoot are grind size and channeling. A good-looking crema is not enough proof that the shot tastes balanced.
What equipment is worth prioritizing?
- An espresso machine capable of a stable, controllable extraction.
- An espresso-capable burr grinder with small adjustment increments.
- A basket-compatible tamper and basic distribution routine.
- A small scale to weigh both dry coffee and beverage yield.
Espresso, ristretto and lungo
The names mostly describe different beverage yields relative to a dose. A shorter ristretto is often near 1:1–1:1.5; a standard espresso may start near 1:2; a lungo extends the ratio. These are useful labels, not fixed laws.
One useful habit: record the beans, dose, yield and grind setting that tasted good. It saves far more frustration than guessing from memory.
