Croptober: dry, cure and store your harvest
OTTO electric grinder by Banana Bros beside its box
OTTO grinder with its charging port, buttons and pollen catcher labelled
OTTO grinder frequently asked questions graphic
OTTO grinder with its milling chamber and blades shown
Cutaway of the OTTO grinder's internal mechanism
OTTO grinder milling chamber close-up
BANANA BROS

Electric Smart Herb and Spice Grinder - OTTO by Banana Bros with Pollen Catcher

A battery-powered grinder that mills rather than grinds. An aerospace-engineered aluminium body, 1.04 lb in the hand, and an internal system that adjusts direction and pressure as it works — which is what stops the uneven, clumped result a hand grinder gives you when the material is sticky.

Specifications

  • Aerospace-engineered aluminium body; 1.04 lb
  • USB rechargeable
  • Brand: BANANA BROS
  • This listing is the no-carrying-case version — a carrying-case variant exists separately

What it does

  • Automatic milling at the press of a button — no wrist, no twisting
  • Adjusts direction and pressure through each cycle, and reverses automatically when it meets resistance so the contents keep moving instead of jamming
  • Mills straight into the included tube, so nothing is lost in the transfer
  • Pollen catcher for kief

In the box

  • The OTTO device
  • Measuring cup
  • Tube and accessory components
  • 4-in-1 cleaning tool
  • USB charging cable

Who it is for

If you fill cones regularly, this is the one that pays for itself in time. If you grind once a week straight into a bowl, a manual 3 inch grinder does that job with nothing to charge.

Keep it clean

Anything that mills sticky material accumulates residue on the plates, and a device that is working harder than it should is a device that wears faster. Clean it with the included 4-in-1 tool on a routine rather than when it starts struggling.

How it compares to the other three

At 1.04 lb this is the heaviest grinder in the range by a wide margin — the other electric is stated at 1.7 oz. All four grinders compared puts that gap next to the thing that actually differs between them: where the ground material ends up.


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