Bannana Bros. OTTO Grinder Review – Coneheads!

Updated: October 6, 2023

Sure, we’ve all seen and heard of automatic grinders before, but the OTTO brings a little extra to the table. With the ability to fill a paper cone in around 5 seconds flat with perfectly ground cannabis, you can make a boatload of pre-rolled cones in no time. Technically, OTTO is a cannabis miller, not a grinder, though we’ll refer to it as a grinder in this review! At $139USD, it’s not exactly what you’d consider cheap. Check out what we have to say about the OTTO grinder here!

Also, be sure to check out our Fun Stuff section to read more about cannabis related gadgets!

Review: banana bros. OTTO grinder

OTTO grinder Review

OTTO grinder heating chamber

How it Works

To start, you’ll place one pre-rolled cone in the clear loading section before placing the OTTO on top. Though you can use your own papers and roll your own cones, it’s much easier and more consistent to use banana bros.’ pre-rolled cones. They do come at a premium price, however.

Next, you’ll place your cannabis in the center of the device after separating the two halves before clamping them back together. Lastly, place the OTTO onto the loading funnel and press the go button. Within a few seconds, your cone will be filled with perfectly ground cannabis and ready to go!OTTO grinder full kit

Otto Grinder and Cone Loader

Manufacturing Quality

The OTTO Grinder is built great and feels terrific to use! For $139USD, we expect nothing less than exceptional quality, however, though the OTTO Grinder does satisfy! The intelligent circuit board detects the density, weight, and texture of your cannabis, adjusting the speed and pressure applied in order to give the perfect grind consistency every time.

This is an impressive amount of engineering put into such a typically primitive device, and that’s pretty neat in its own regard! It feels terrific to use, looks interesting and it’s built tough. It also comes with 20 pre-rolled cones, filling tube & funnel, charging cable, cleaning tool, measuring cup, storage cap, and fresh seal cone tube.

OTTO grinder detached

OTTO grinder tank

Ease of Use

Once you’ve used it once, you’ve used it a million times. There’s not much learning curve involved similar to the LITL 1, and it’s quite useful for those with mobility issues or fine motor problems since you don’t need to roll your own cones.

Cleaning it is surprisingly simple too! The aluminum milling plates detach easily and can be soaked in a bath of cleaning solution. Using a small brush or cleaning tool to get rid of any other residue or build-up will get it back to normal.

OTTO grinder performance

Performance

It does what it says it does! The grind consistency is very uniform and fluffy, and to those with a trained eye, they’ll be able to spot the difference.

We found the OTTO Grinder doesn’t really attach to any vapes like the Zeus Arc GTS Hub particularly well, though the grind consistency will definitely work for them. The battery isn’t the beefiest of the bunch either, only getting you around 20-30 cones per charge. Still, that’s plenty of juice for most typical applications.

OTTO grinder full kitOverall Experience

For a person who prefers rolling over other methods of consumption, the Otto Grinder can be seen as a worthwhile investment. If you are an older user who is starting to have dexterity issues in their hand than this product may be a godsend.

However, for the occasional roller, you will have to ask yourself if the convenience of an occasional cone is worth the overall price. Not to mention that you’ll likely want to buy their pre-rolled cones which aren’t cheap by any means, which is another chunk of change.

If you’re really at your end-game setup and have nothing else to blow cash on, or if you have the need for quickly rolling a large quantity at a time, then it might be a solid choice for you.

If you are looking for a quality hand-cranked grinder we recommend checking out the Zeus Bolt Grinder which is perfectly calibrated for vaporization.

If you have questions about our OTTO grinder review or just want to let us know what you think, feel free to drop us a comment below! Thanks for reading and as always, keep vapin’!

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About Author
Avatar for Alex Karakatsanis

Alex is a cannabis enthusiast, long time vaporizer lover, writer and filmmaker. He is also a board and video game nerd with a penchant for hosting a weekly board game night. Partygoers have been heard saying things like “is anyone else going to show up?” and “I don’t think I can make it next week”. He strives to make people laugh at every opportunity and sees cannabis as a helpful tool in doing so.

The reviews and ratings are based on personal and decade-plus of industry experience. Such content is based on the opinion of the Editor/Author. They are solely provided as a basis for research and should be used only as guidance. We encourage thorough research by all visitors to attain the most objective viewpoint before purchasing.