How To Brew: Everything You Need to Know to Brew Great Beer Every Time

How much should I spend on my first espresso machine?

Under $300 gets you pressurized portafilter machines (Breville Bambino, De'Longhi Stilosa) that are forgiving but limit growth. The $400-700 sweet spot (Breville Barista Express, Gaggia Classic Pro) offers unpressurized baskets, PID temperature control, and the ability to dial in real espresso. Spending under $200 on an espresso machine usually leads to disappointment.

How much does water quality affect coffee taste?

Enormously — coffee is 98% water. Hard water mutes acidity and produces flat flavors. Too-soft water over-extracts and tastes sharp. Ideal brewing water has 50-175 ppm total dissolved solids, a pH of 6.5-7.5, and no chlorine. If your tap water tastes bad, your coffee will too. Third Wave Water mineral packets or a simple Brita filter make a noticeable difference.

How fresh should my coffee beans be?

Buy beans roasted within the last 2-4 weeks and use them within 30 days of roasting. Coffee degasses CO2 rapidly after roasting — espresso needs 7-14 days of rest post-roast, while filter coffee is best 4-21 days off roast. Store beans in an airtight, opaque container at room temperature. Never refrigerate; never freeze (unless vacuum-sealed for long-term storage).

How often should I descale my coffee machine?

Every 2-3 months for most machines, or when the descale indicator triggers. Hard water areas may need monthly descaling. Use citric acid powder (1 tablespoon per liter) or manufacturer-recommended descaler — never vinegar, which leaves residual taste and can damage seals. For espresso machines, also backflush with cleaning detergent weekly.