Final answer:
A single espresso requires 7-9 grams of coffee, while a double requires 14-18 grams, depending on roast, grind, and personal taste.
Step-by-step explanation:
When preparing espresso, it's important to use the correct dose of coffee to achieve the desired strength and flavor.
A single espresso typically requires about 7-9 grams of espresso coffee grounds, while a double espresso, which is simply a larger serving, usually requires between 14-18 grams. The exact amount may vary slightly depending on the coffee's roast level, grind size, and your personal taste preference.