prismo on table with graphics

Meet Prismo, an AeroPress® attachment that unlocks espresso-style coffee without an espresso machine.

We here at Fellow love espresso, but sometimes we don’t have access to a good espresso machine, and the team is left to walk to the nearest coffee shop. Since we’re a coffee product company (and that coffee shop is over a mile away), we figured we should probably solve this problem.

After countless prototypes, Fellow landed upon Prismo, a pressure actuated valve designed to be used with the AeroPress®. This attachment allows for a buildup of pressure to create espresso-style coffee and creates a no drip seal for a full immersion brew. Syrupy and full-bodied, Prismo’ quick punch of caffeine will save the day…or at least your morning. Check out the video below to see Prismo in action:

prismo shooting coffee out

Since we’ve always been a huge fan of the AeroPress®, we teamed up with Blossom, a San Francisco-based engineering firm to tackle Prismo. Together we knew we wanted to give coffee nerds the option to brew espresso-style anywhere, anytime.

prismo and aeropress


Prismo’s three main features

or “superpowers”, make it easy to brew top-notch espresso-style coffee at home using your AeroPress®:

pressure actuated valve and prismo

  • Pressure Actuated Valve – The secret weapon for “pulling a shot” with more pressure. The special valve stays sealed until you press down and creates more pressure in order to brew coffee to a consistency closer to espresso than the AeroPress® on its own.
  • No Drip Seal – Ditch the flip. Brew a full immersion without inverting your AeroPress®.
  • Reusable Etched Metal Filter –  Cut out the middleman. The 150 micron etched fine metal filter stops sludge in its tracks and eliminates the need for paper filters.
80 micron filter



espresso style shot graphic with prismo


To brew espresso-style coffee with Prismo and AeroPress®, it’s as easy as making any other coffee with AeroPress®

  1. Add 20 grams of Ultra-Fine ground coffee
  2. Add 50 mL of water at 212° F
  3. Stir 10 seconds to completely wet coffee bed
  4. Steep for 1 minute
  5. Press (FIRMLY)


prismo brewing into cup


Whether you’re an AeroPress® nerd that already collects recipes on recipes or an AeroPress® beginner, Prismo unlocks an endless array of new superpowers for your brewing pleasure…including a coffee blaster…

Prismo shooting coffee out