The 58 mm portafilter is a common filter used in commercial espresso machines and not available in general portable coffee extraction equipment. 58 espresso™ has used its unique technology to incorporate a 58 mm portafilter into the product!
Espresso Recipe in Common
Although there are slight differences among baristas, espresso extraction recipes are generally as follows.
✔️ 9-Bar Atmospheric pressure
✔️ Water temperature ranging from 90°C to 96°C
✔️ 58 mm portafilter to prevent over-extraction
✔️ Fine espresso grain, 1 dose of fresh beans
✔️ About 30 seconds of extraction time
✔️Ratio of coffee beans to extraction weight 1:2