Como preparar o espresso perfeito em casa com a CAST Cup

Quick answer

Brew perfect espresso at home by dialing in your grind, dose, and timing, then serve in the Kinto CAST espresso cup for a smooth, stress-free pour.

Step-by-step espresso brewing routine

1. Step 1: Dial in your grind size: Use a burr grinder to set a fine, consistent grind — roughly the texture of table salt. If your espresso runs too fast (under 20 seconds), grind finer; if it chokes (over 30 seconds), grind coarser. A common mistake is using pre-ground coffee, which gives you no control over extraction. Adjust grind size in small increments (1-2 clicks) until you hit 25-30 seconds for a double shot.
2. Step 2: Measure your dose precisely: Weigh your coffee grounds — aim for 14-18 grams for a double espresso. Distribute evenly in the portafilter and tamp with firm, level pressure (about 15-20 kg). A common mistake is uneven tamping, which causes channeling and bitter or sour flavors. Use a scale to confirm dose weight; a WDT tool or paperclip can help break up clumps before tamping.
3. Step 3: Pre-warm the CAST cup and brew: Place the Kinto CAST espresso cup under the group head and run a blank shot or hot water through it to pre-warm the ceramic. This keeps your espresso at the right temperature longer. Then brew your shot, aiming for a 1:2 ratio of coffee to water (e.g., 18g in, 36g out) in 25-30 seconds. Pre-warming the cup prevents the espresso from cooling too quickly, preserving crema and flavor.
4. Step 4: Observe the pour and taste: Watch for a steady, honey-like stream that starts dark and lightens to a golden crema. If it sputters or drips, your grind or dose needs adjustment. Taste the shot immediately — it should balance sweetness, acidity, and bitterness. A common mistake is not tasting until the cup cools, missing the peak flavor window. Taste within 30 seconds of brewing to evaluate extraction; adjust grind or dose for next shot.
5. Step 5: Clean and care for the cup: Rinse the CAST cup with warm water immediately after use to prevent coffee oils from staining the ceramic. Avoid abrasive scrubbers that could scratch the matte finish. The cup is dishwasher-safe, but hand washing preserves its appearance longer. Hand wash with mild soap to keep the cup looking new; dry immediately to avoid water spots.

Product facts

• CAST espresso cup 90ml / 3oz: The CAST espresso cup holds 90ml (3oz) and features a simple, uninterfering design with a carefully considered proportion for smooth motion in the kitchen. Its 90ml capacity perfectly fits a double espresso shot with room for a small crema, and the ergonomic handle reduces wrist strain during use.