OTTO Grinder Review: The Best Electronic Grinder of 2018

9.7 Total Score
Banana Bros. OTTO Weed Grinder Review Bottom Line

Every great dry herb vaporizer needs a great grinder and the OTTO weed grinder might be the best grinder yet. It can adjust the grind automatically based on the type of material being used, no calibration necessary, just let the OTTO do the job. It works great for spliffs but your vaporizer will love it too because of how evenly it grinds any type of herb. Overall, the Banana Bros OTTO weed grinder is great for you, your weed, and your vaporizer.

Best Deal: Buy the Otto Grinder from Vape-Smart and use coupon code TVG10 and save 10%.


Banana Bros. OTTO Weed Grinder Background

The Banana Bros. OTTO weed grinder ($129.99 from Vape-Smart and Amazon, use coupon code TVG10 at Vape-Smart to save 10%) is easily the best automatic grinder available and one of the best grinders period. It’s larger than any other auto grinders you’ve seen, but the trade-off is that it provides a better grind than even the Best Weed Grinders.

The OTTO grinder is versatile enough to work with tobacco and with a wide variety of herbs, but we all know there’s only one herb you’re thinking about. It works great with the dry kind of herb if you’re into smoking it, but what if you’re into vaping it? Does this grinder work for vaporizers too? Keep reading my Banana Bros. OTTO weed grinder review to find out.

Banana Bros. OTTO Weed Grinder Kit

  • OTTO Weed Grinder
  • O funnel
  • Fresh seal cone tube
  • Measuring cup + 20 Otto grinder cones
  • 4 in 1 tool + USB cable
Banana Bros. Otto Weed Grinder Cones
L-R: OTTO Weed Grinder, OTTO Grinder Cone, cone tube, cone tube package.

Banana Bros. OTTO Weed Grinder Key Features

  • Compatible w/ dry herb, tobacco, and other herbs
  • Automatic grind adjustment
  • Measuring cup prevents overfilling
  • Very fast and efficient
  • Cone tube masks odor
  • Retails from Vape-Smart & Amazon for $129.99, use coupon code TVG10 at Vape-Smart to save 10%
Banana Bros. Otto Weed Grinder Cone Tube
The ground herb is funneled directly into the cone tube, which masks the odor of the herb.

Banana Bros. OTTO Weed Grinder Design

The OTTO is pretty big for an automatic grinder, but it has a sleek, minimalist design and a host of features that you won’t find anywhere else. The standout feature is that it grinds the herb directly into the joint, no pre-rolling necessary. It basically brings your prep time down to zero.

The other standout feature is the automatic grind function. The OTTO will adjust the grind based on the material placed inside it. No need for any adjustment or calibration, just press the single power button.

The other-other standout feature is how simple the whole device is. The grinder itself is only comprised of two parts and the cone tube or O funnel snaps onto it easily. That’s all there is to it. It makes cleaning and maintenance a simple affair. Overall, the OTTO grinder is an intuitive, cool looking, high-tech device.

Banana Bros. Otto Weed Grinder Tube Connection
The OTTO Weed Grinder (top) easily attaches to the cone tube (bottom).

Banana Bros. OTTO Grinder Cones

The grinder cones included with the OTTO are unbleached, translucent, well designed, and fit into the cone tube perfectly. They burn slowly and cleanly with good airflow and pure flavor.

There’s no need to worry about canoeing since they burn evenly. Even though we prefer you vape your weed rather than smoke it, these cones are a good choice if you decide to do the latter.

They come in a cardboard box and have quality filters so you can use up all the weed in the joint without a roach left over. Once you run out, you can order a pack of 100 OTTO grinder cone replacements for $25.64 from Amazon.

Banana Bros. Otto Weed Grinder Cones Package
The OTTO Grinder Cones come in a simple package that keeps them fresh.

How to Use the Banana Bros. OTTO Weed Grinder

Your first step should be to use the measuring cup to determine exactly how much herb you need. It can measure a joint’s worth if that’s what you need, but if you’re going to be using your herb in other ways, then adjust the amount accordingly.

With Pre-rolled cones

  1. Open up the OTTO to expose the grinding chamber.
  2. Place your herb into the chamber and close the OTTO.
  3. Place a cone into the cone tube and attach the tube to the OTTO.
  4. Press the power button to start the grinding process.
  5. Once grinding is complete, separate the cone tube from the OTTO and remove the filled cone.
Banana Bros. Otto Weed Grinder Cone Insertion
The Otto Grinder cones are inserted into the cone tube at the start of the grinding procedure.

For Regular Grinding

  1. Open up the OTTO to expose the grinding chamber.
  2. Place your herb into the chamber and close the OTTO.
  3. Attach the O funnel to the grinder and press the power button.
  4. Once grinding is complete, dispense the weed into the receptacle of your choice.

Banana Bros. OTTO Weed Grinder Performance

The OTTO produces a perfect grind every time without the need to make any adjustments or tune any settings. Even better is that it grinds up the majority of the herb with very little left over. That makes it one of the most efficient auto grinders as well as one of the most advanced.

The OTTO herb grinder is just as good for vapers. Since the OTTO grinds your herb so well, you’ll end up doing more with less of it. That’s because the finer the grind, the more surface area of the herb chamber is covered by your weed. No matter what kind of dry herb vape you have or what kind of weed you use, the OTTO will have them in perfect vaping harmony.

Banana Bros. Otto Weed Grinder Operation
The OTTO Weed Grinder's simple operation provides the perfect grind every time.

The only slight downside is that transferring the herb to the vape isn’t as straightforward as transferring it to the cone. The large mouth of the O funnel makes transferring the herb directly to the vape’s herb chamber fairly tricky. You need to empty the ground herb somewhere else and then transfer it to the vaporizer’s herb chamber. That’s one extra step compared to the cones but it’s not a big step and it’s definitely worth it once you experience how much better your weed gets vaped.

The OTTO shows your weed and vaporizer lots of TLC so you need to show it some in return because it needs to be cleaned regularly. A quick clean every 2 to 3 uses and a more thorough cleaning every 10 to 12 uses is necessary. That’s because resin from the herb can stick in the chamber. A perfect grind for some occasional cleaning? I think that’s a pretty good tradeoff.

Banana Bros. OTTO Weed Grinder Review: Conclusion

The Banana Bros. OTTO Weed Grinder (retails from Vape-Smart and Amazon for $129.99, use coupon code TVG10 at Vape-Smart to save 10%) is simply the best, most efficient, and technically advanced automatic grinder available.

The OTTO grinder is perfect for both joints and vaporizers and is the best way to get the most value from your weed. That’s because so little of it gets wasted and you’ll be using less of it per session. It’s absurdly simple to use since there’s no fiddling around with any settings or calibrations. The OTTO grinder has the ease of use of an automatic grinder combined with the thoroughness of a manual grinder. That makes it one of the Best Weed Grinders ever made.

Thanks for reading my Banana Bros. OTTO weed grinder review, it’s the best value for your money and the best value for your weed.

Where to Buy the Banana Bros. OTTO Weed Grinder

Banana Bros. OTTO Weed Grinder

The best and smartest automatic weed grinder

$129.99


A huge proponent of the vaping lifestyle who would love it if everyone who smokes makes the switch to vaping instead. Loves CBD and would like to see it infused into everything. Aside from the world of vaping, he also loves reading, health & fitness, gadgets & technology, and culture, both the pop and regular kind.

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