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Banana Bros OTTO Electric Smart Spice Grinder - Automatic Herb Grinder with Smart Technology - Rechargeable via USB - Portable Milling for Dry Herbs and Spices - Black - No Carrying Case

  • Based on 1,751 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, May 3
Order within 34 minutes
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Size: No Carrying Case


Color: Black


Features

  • AUTOMATIC HERB GRINDER KIT (NO CARRYING CASE) This electric spice grinder kit includes a smart mill, fresh seal storage tube, O-Tube holder, measuring cup, USB cable, and 4-in-1 cleaning tool. Please note: carrying case not included.
  • SMART GRINDING TECHNOLOGY The advanced internal sensor system adjusts speed, direction, and pressure during grinding for consistent results. Designed to gently mill dry spices and herbs while helping maintain their aroma and structure.
  • ONE-TOUCH MILLING WITH PRECISION DISPENSING OTTO effortlessly mills your material at the press of a button.The upright design, paired with the O-Tube, ensures smooth, mess-free filling directly into King or Shorty cones for a cleaner experience.
  • CONSISTENT RESULTS EVERY TIME This grinder produces a uniform texture that helps enhance the preparation and usability of your dry spices or herbs. Ideal for those who value reliability and clean operation in a compact, modern device.
  • ENGINEERED FOR RELIABLE PRECISION OTTO isnt your average herb grinder. With strategic, careful milling and a sturdy, well-built design, it delivers clean, consistent results with less effort than traditional manual grinders.

Material: Aerospace Engineered Aluminum


Color: Black


Brand: BANANA BROS


Item Weight: 470 Grams


Operation Mode: Automatic


Recommended Uses For Product: Home, Picnic, Camping


Is Dishwasher Safe: No


Number of Items: 1


UPC:


Unit Count: 1.0 Count


Brand Name: BANANA BROS


UPC: 854674008455


Set Name: No Set


Manufacturer Part Number: OTTO1-BKUS-00845


Model Number: OTTO1-BKUS-00845


Manufacturer: BANANA BROS


Unit Count: 1.0 Count


Item Weight: 470 Grams


Material Type: Aerospace Engineered Aluminum


Is the item dishwasher safe?: No


Recommended Uses For Product: Home, Picnic, Camping


Color: Black


Operation Mode: Automatic


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Electronic cone grinder and filler
Size: No Carrying Case Color: Black
Honestly I was a little worried when I first got this product but since I've had it for almost a year it's honestly really handy as long as you take care of it and don't treat it like a normal regular metal grinder. It's super easy to use clean up is a little bit more difficult but not too bad they give you a brush but I found if you get a paintbrush with the long skinny tip it works better. The size is not too bad you can fit it pretty much wherever you need to. The grind quality is honestly awesome I'm never had one of my cones to lose or to packed of course after it loads it you have to pack it and it's up to you but buy that time it's honestly really awesome grind. I don't use very bad stickiness stuff in it because it is electronical I try to use more of a dryer substance so it's easier to clean up and not caking to it. ... show more
Reviewed in the United States on November 4, 2025 by Lane Peeples

  • Gorgeous machine.
Size: No Carrying Case Color: Gold
Beautiful grinder and cone machine. Rechargeable and small enough to stash. Comes with adapter for different size cones, although the grinder works best with Banana Bros cones, which are longer and larger than most common sizes. Smaller size papers can lead to material missing the cone. Fun to use and a great conversation piece ... show more
Reviewed in the United States on March 13, 2026 by john

  • Third time changing my review .
Size: Carrying Case Included Color: Red
This is my third review. I've had it for Less Than 3 months and it stopped working. It makes a loud winding slash screeching noise and does not move the grinding mechanism. I'm still well within the one-year warranty. But outside of the one month return. Amazon told me to contact banana Bros through amazon. I contacted them and they wanted a picture of my device which I posted. From that point on I've never heard from them. Very very sad customer service. Amazon had to step in and make it right. Would still cost me a restocking fee but at least I'm not down 160 bucks in total. When the machine was working it was the best automatic grinder I found. But for 160 bucks in the last Less Than 3 months that's ridiculous. Far from the best. So do not buy! I needed this grinder because I had hand surgery. The first one I purchased constantly shut off for no reason. I found out that the rod was that long enough to fully close the limit switch so the grinder knows it's closed. Clearly if all the unit so I returned it. My new grinder works much better but still has its issues. The stuff I'm grinding up is usually a little bit dense. I'll put a nickel size bud in the grinder and there's times the unit cannot handle it. It will try for a bit and then shut off. You either have to wait a minute or two to turn back on or plug in the power cord real quick and unplug it and then you can finish grinding that piece. There's times I put two of them in there and it works fine. They definitely need a bigger battery and probably a stronger motor. And it uses a micro usb to charge. It should definitely be a type-c. I lowered it to three stars because the batteries charge is getting worse. ... show more
Reviewed in the United States on May 14, 2024 by melinda zemke melinda zemke

  • Easy to use, convenient
Size: No Carrying Case Color: Black
I have had mines since 2023. Still works like a charm
Reviewed in the United States on February 4, 2026 by Q king

  • Nice new look and grinding
Size: No Carrying Case Color: Black
Love it rolls really quick and it’s pretty quiet so far so good no complaints great quality for the price very easy to use and clean and stylish might get the gold one next
Reviewed in the United States on January 21, 2026 by Alton Cooper Alton Cooper

  • The good, bad and Ugly
Size: No Carrying Case Color: Black
Now to my review of the auto roller. I’ll start with the good then to the bad. The good. :It rolls joints :Supper high quality moldings on the plastics with a nice anti stick almost soft plastic texture. That part is expensive to manufacture so big points to that. The fit finish alone makes me know this is not a cheap item. :It’s a well thought out unit. (See the pic with this text). In the open position the hinge is maxed open but rests perfectly on the table like dead nuts perfect. Again making it feel like it’s a premium product. :I’ve ran around 1/3 ounce through it and it’s to the point it needs to be cleaned. Still works fine so points. :I’ve never had to unclog it or have it not grind all the bud. :The preprogrammed grinding sequence it does is very smart. Almost makes you think it’s getting feed back and changing how it grinds based on load…not the case but still points for making me think that’s a possibility The bad. :Battery life is not the best you get around 6-10 joints per charge over 2-3 days in my experience. Not terrible but not great. :It does not work while plugged in and charging. I’m going to go on a rant on this topic but it’s pretty unacceptable for any DC product to not work while plugged in and charging. It’s a $0.03 one way mosfet to add that functionality. :It uses a micro usb as the charging port. It’s 2025 and we got Apple to use type c. Everything should be type c. ... show more
Reviewed in the United States on August 1, 2025 by Mark W.

  • Better ways
Size: No Carrying Case Color: Black
Very handy , buts gets clogged and very funky. Hard to clean . Lock mechanism breaks quickly. Not recommended
Reviewed in the United States on February 19, 2026 by Juju

  • It’s a game changer
Size: No Carrying Case Color: Black
I really love this product. I’ve been looking for one for a very long time and I finally found one thank you. I recommended to everybody who enjoy smoking it’s done in less than a minute. I don’t know what I did without it.
Reviewed in the United States on January 22, 2026 by Amazon Customer

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