Rocket’s double basket is capable of holding exactly 18 grams of finely ground coffee (…give or take a gram, depending on your process) to produce a clean 2 ounces of espresso. This basket is designed to fit neatly into any portafilter from the Rocket Espresso line; however, because this basket uses the standardized 58mm diameter size – it will also fit well inside most other 58mm sized portafilters. Try using this basket with a bottomless portafilter to see its true ability in action!
