Rocket Espresso Milano Bottomless Portafilter R01-RA99905022

Details

Bottomless (naked) portafilters, such as the Rocket 58mm naked portafilter allow the barista to see how the espresso is extracting from the machine. Using a bottomless portafilter allows the barista to see if blonding or channelling

Since using the bottomless portafilter allows you to view the full extraction, it makes it easier to see what techniques need to be adjusted in order to pull a better shot.