Why Should You Clean a Zero Retention Grinder If They Don’t Retain Any Grounds?

Although zero retention grinders are designed to minimize the retention of coffee grounds, it's important to understand that they may still retain a small amount of coffee due to factors like static electricity or the grinding mechanism. Therefore, cleaning your zero retention grinder remains essential for several reasons:

  1. Coffee oil buildup: Coffee beans contain oils that can build up on the grinder's burrs and other internal components over time. This buildup can affect the grinder's performance and the taste of your coffee.

  2. Residual grounds: Even with a low or zero retention grinder, there may still be a small amount of grounds left behind. These grounds can become stale and, if not removed, can mix with freshly ground coffee, negatively impacting the flavor.

  3. Consistency and performance: Regular cleaning helps maintain the grinder's optimal performance and ensures that you consistently get the desired grind size.

  4. Longevity: Cleaning your grinder regularly can extend its lifespan by preventing the buildup of coffee residues and oils, which can cause wear or damage over time.

  5. Hygiene: Regular cleaning helps maintain a hygienic grinding environment, preventing potential mold or bacterial growth due to moisture or old coffee grounds (although unlikely).

So, while zero retention grinders may retain fewer grounds than other grinder types, it's still crucial to clean them regularly to maintain optimal performance, coffee quality, and the grinder's longevity.

Tony Barlow

Tony Barlow

Majesty Coffee Technical Sales Expert - Meet the Team

Tony Barlow, with over a decade of experience in the coffee industry, is the go-to technical sales expert at Majesty Coffee. He's passionate about helping businesses find the right espresso equipment for their needs.