Re-insert the portafilter and go through the start-stop cycle 5 more times

Sharp Patented S2C Grinding Burrs - Produces consistent and precise grinding

1 x Starwars Keep Cup Stormtrooper 12oz Original

well-rounded brewer

Wacaco Octaroma Insulated Mug

The Physics of Filter Coffee - Jonathan Gagne Industrial Cafe Cleaners Re-insert the portafilter and goAstrophysicist Jonathan Gagne writes the ultimate book for geeking out about coffee. The Physics of Filter Coffee covers the science behind grinding, extraction, percolation, and even water chemistry. He also takes readers on a wild ride about how product design particularly of kettles and brewers affects your final brew. Though packed with science and data, The Physics of Filter Coffee is still an approachable book thanks to Jonathan Gagnes talent