Key benefits of the OTTO Gold

Premium Metallic Gold finish

The OTTO Gold combines its intelligent operation with an eye-catching metallic gold exterior. This premium finish gives the device a more elegant and distinctive character while retaining the ergonomic, easy-to-hold form of the original OTTO.

The upper section provides access to the expandable milling chamber, while the magnetic connection underneath allows the O-Tube to be attached quickly. Controls are deliberately kept simple, so there are no complicated settings or display-based menus to navigate.

The Metallic Gold colour also appeals to customers who do not want an electric grinder to look like a purely technical object. On a shelf or tabletop, the OTTO Gold has the appearance of a premium accessory. Together with the black carrying case, it forms a stylish complete set that can also make an impressive gift.

Rechargeable battery and USB charging

The OTTO is powered by an integrated rechargeable battery, so it does not need to remain connected to mains power during operation. This allows more flexible placement and convenient use on a table or, under appropriate conditions, while travelling.

Depending on the material’s consistency, the amount used in each cycle and individual operating habits, one full charge may provide approximately 20–30 milling and filling cycles. This allows several cones to be prepared without repeatedly stopping to recharge the device.

A Micro-USB charging cable is included. A suitable compatible USB power source is required for charging. To support long-term battery condition, the OTTO should be charged according to the manufacturer’s instructions and stored clean and dry when it will not be used for an extended period.

How to use the OTTO Gold

The automatic system can be operated in a few straightforward steps. The OTTO performs much of the milling and filling process, while the user is primarily responsible for correct preparation and secure assembly.

Included 4-in-1 tool

The included 4-in-1 tool combines several frequently required functions in one compact accessory. Its brush end can be used to clean the milling teeth and other accessible surfaces.

The pointed end can carefully open compressed or creased paper cones, gently tamp a completed fill and remove residue from harder-to-reach areas during cleaning.

This multifunction design reduces the number of separate small tools required and occupies very little space inside the carrying case. Before and after each use, the tool should be checked to ensure it is clean and completely dry.

Fresh Seal Tube and magnetic Snap Cap

The Fresh Seal Tube provides separate storage for a filled paper cone. It helps protect the cone’s shape during transport and offers a more organised and discreet storage solution.

The magnetic Snap Cap can be attached to the underside of the OTTO when the device is not connected to the O-Tube. It helps keep loose remaining material inside the grinder and supports cleaner storage.

Both accessories fit naturally into the OTTO’s portable all-in-one concept. They do not change the milling process itself but make everyday handling of the device and a prepared cone more convenient.

Premium pre-rolled paper cones

The package contains 20 premium pre-rolled paper cones with dimensions and shapes designed to work smoothly with the OTTO filling system. Their carefully formed structure helps each cone retain its shape during automatic filling.

Banana Bros. cones are produced from 100% natural, unbleached raw fibres. According to the manufacturer, they are free from GMOs, chlorine and animal-derived ingredients, supporting a vegan-friendly design.

The included pack provides a convenient starting point for the first uses of the OTTO. Compatible King or Shorty cones can later be used with the appropriate O-Tube adapter.

Cleaning and regular maintenance

To preserve consistent milling performance, the internal areas of the OTTO should be cleaned regularly. Before cleaning, always switch off the device, detach the O-Tube and make sure that no charging cable is connected.

The included cleaning brush can be used to remove dry residue carefully from around the milling plates and accessible internal areas. The pointed end of the 4-in-1 tool can reach narrower spaces, but excessive pressure and potential damage to the components must be avoided.

The electronic milling unit must not be submerged in water or cleaned under running water. Liquid must not enter the motor, controls or charging connection. Follow the manufacturer’s instructions when cleaning the O-Tube and separate accessories, and allow every component to dry completely before reassembly.

Regular dry cleaning helps preserve a clear material path, reduces residue around the milling plates and contributes to the OTTO’s long-term reliability.

What is included?

• 1 Banana Bros. OTTO Gold automatic grinder
• 1 black carrying case with shaped interior
• 1 magnetic O-Tube cone holder
• 1 O-Funnel
• 1 measuring cup
• 1 adapter base
• 1 Shorty adapter base
• 1 Fresh Seal Tube
• 1 magnetic Snap Cap
• 1 four-in-one cleaning and tamping tool
• 1 Micro-USB charging cable
• 20 premium pre-rolled paper cones
• User manual
• Quick-start guide

The story behind Banana Bros.

Banana Bros. was founded in 2017 by Dave Richmond and Manny Montano. Their objective was to develop products that make traditional and often time-consuming dry botanical preparation processes simpler, cleaner and more predictable.

The OTTO became one of the brand’s best-known innovations. It connects milling and paper-cone filling in one automated system. The central idea is that technology should not make the user’s task more complicated but should make it significantly easier.

The Metallic Gold version adds a premium finish and a dedicated carrying case to this practical concept. The OTTO therefore becomes more than a functional device: it is a carefully assembled and conveniently stored complete system.

Who is the OTTO Gold for?

The OTTO Gold can be particularly attractive to customers who regularly use pre-rolled paper cones and want to reduce the time and mess associated with manual grinding, transferring and filling.

It may also provide useful assistance to anyone who finds manual grinding or the finer hand movements involved in cone filling difficult. The automated system does not require extensive practice, and its simple operation can be learned quickly.

The metallic gold finish and premium carrying case also make it a distinctive gift. Its comprehensive accessory set means that all important components required for the first uses are already included when the package is opened.

Why choose the Banana Bros. OTTO Gold?

The strength of the Banana Bros. OTTO Gold lies in the combination of automation, consistent operation and premium design. Its intelligent milling system adjusts movement to the properties of the loaded material and then guides the finished result directly into a paper cone.

Rechargeable operation provides freedom of movement, the magnetic O-Tube enables quick assembly, and the 4-in-1 tool and Fresh Seal Tube make smaller details of everyday use more convenient.

The Metallic Gold surface is distinctive without appearing excessive. The black carrying case offers better-protected storage and more organised transport while keeping the OTTO and its accessories together as one complete system.

Within the Grow Island range, the OTTO Gold is designed for customers looking beyond an ordinary grinder towards an intelligent, automatic and carefully considered milling and cone-filling solution.