The Americano often falls short in flavor due to bitterness and astringency, but several unconventional techniques can significantly improve it:

• Use freshly steamed water instead of machine hot water: Water from the steam boiler can be overly concentrated and stale. Steaming fresh cold water to ~65–70°C introduces dissolved gases that enhance sweetness, texture, and drinkability. Blind tastings consistently favor steamed water over tap or machine-dispensed hot water.

• Skim the crema: Crema contains bitter suspended coffee particles and excess CO₂, contributing to harshness. Removing it with a spoon results in a smoother, more complex, and less bitter Americano. This is especially effective in longer-lasting drinks like Americanos, where crema lingers.

• Try vacuum degassing (experimental): Placing a crema-free Americano in a chamber vacuum briefly reduces pressure, potentially altering CO₂ saturation. Early tests show a surprisingly silky texture, though the mechanism is unclear—possibly linked to dissolved gas changes.

• For iced Americanos, make an 'Aerocano': Steam ice water after adding espresso to create a nitro-like, creamy foam. This reduces bitterness and improves mouthfeel. The drink is now on Starbucks’ menu in Korea (sweetened).

• Hot 'Aerocano' variation: Steaming the finished hot Americano creates a foamy, cappuccino-like texture. While flavorful and smooth, it’s distinct from a traditional Americano and may feel unusual.

• For filter-like results on an espresso machine: Use a light roast and pull a long lungo (e.g., 18g in, 65–70g out), then add to steamed water and skim crema. This improves extraction and mimics the complexity of filter coffee.

These methods address the core issues of bitterness, poor extraction with light roasts, and suboptimal water quality—making the Americano a far more enjoyable drink.