what is the best grinder for weed

What’s the best cannabis grinder?

In order to smoke or process our buds, it’s usually necessary to break up the buds first, especially if they’re really dense!

Most growers chop or grind their marijuana buds so they are easier to use!

When smoking, grinding help your buds go further by “aerating” the buds (make them fluffy) so they burn more efficiently. This is can make buds feel stronger and last longer compared to breaking it up with your fingers!

Dense buds like this are extremely difficult to break up properly with your fingers

Most common tools for grinding or chopping cannabis:

  1. Hands/fingers – just okay
  2. Scissors – a little better than using your hands
  3. Grinders from Around the House – tools that are meant to grind herbs, coffee and tobacco all do a pretty good job with cannabis, too. However, these usually don’t have any way to catch kief that falls off your buds.
  4. Specially Made Cannabis Grinders – these can go from terrible to great, depending on the model!

There are a millions ways to chop up your cannabis, and many work well, but if you are serious about getting the most from your buds, there’s a style of grinder that rules them all.

Grinders that are made for marijuana come in many different colors and models….

But which grinder works the best for weed?

4-Piece Cosmic Case – The Best Cannabis Grinder!

Important Note: Unfortunately, production of the Cosmic grinder seems to have halted. We’re devastated by the loss of this first-rate grinder, but we’re currently testing dozens(!) to find the next best thing. For now, we’re using our old Cosmic grinders and the Santa Cruz Shredder, which has been a good backup. If you have a grinder for us to try, let us know here!

I’ve used dozens of grinders over the years, and some are definitely better than others! Many of them can be a really great choice, but there’s one to rule them all.

Now-a-days, I will only use a 4-piece Cosmic Case grinder. It may not look like anything special (though they do come in various colors and sizes), but that’s not what makes it great. Its greatness lies in the fact that it is has been designed by cannabis connoisseurs from the bottom up.

First, let me warn you about the price… They’re realllllllly expensive. I’m talking up to $90 for their large models!

That may seem obscene, and it honestly is an obscene price for a grinder (which are normally closer to $15).

But if you grind up a lot of bud in your life, I think it’s worth it to invest in a Cosmic Case. I only got one because a guy at a head shop convinced me, but I’m glad he did because I’ve used them ever since.

About the Cosmic Case Grinder

It’s a sturdy piece of metal with good weight to it, and it has an overall very solid design.

The 4-piece “Large” version looks like this when you open it up.

Like all high-end grinders, it comes with a kief trap to collect all the kief/trichomes/glitter that naturally comes off your buds during the grinding process. That way you have kief for later!

Note: When a grinder is labeled as a “4-piece” grinder, the 4th piece is the kief trap (often called a “pollen trap” by sellers).

Kief/trichomes collect in the pollen trap so you can use it later!

It also has a very strong magnetic top that lets you easily open it up, yet the magnet is strong enough that it won’t fall off on its own even if you hold it upside down or keep it in a purse or backpack all day. This may seem like a small thing, but it’s a huge improvement over grinders with weak magnets (where the top comes off all the time) or screw-on tops (which get all gunked up after a while and won’t screw off easily anymore).

Those are great features that you should get from any high-quality grinder! However, the Cosmic Case has something else that makes it special….
What Makes It the Best Grinder?

The thing that makes this grinder so great is the weird holes it uses. They look like they’re going to let all your bud through in huge pieces because they’re so much larger than standard holes, but it doesn’t actually do that.

For whatever reason, these oddly shaped holes are just plain better (in my opinion) than the regular round ones. They shear the buds into a different consistency than normal grinders, and buds never get ground to dust.

The uniquely shaped holes shear your buds instead of grinding them into powder

The shearing makes any buds kind of fluffy, even if you’re using dense buds that are tough to break up.

I have found that buds actually seem stronger/more potent compared to not grinding them because the ground bud burns all the way through evenly in just one breath. This makes buds last longer since you use less at a time (though it can give you a head rush!).

The buds become fluffy due to the shearing action – this extra air makes buds burn better and they’ll often actually feel more potent!

It works great even with extremely dense buds!

Check out the 4-Piece Cosmic Case on Amazon!

When you use a great grinder like this, your buds will feel more potent and as a result your buds will last longer. Despite the cost, these are a good investment! It’s a top-notch present for a fellow enthusiast, or as a present to yourself, and I know you’ll become a believer as soon as you try one the first time!

What’s the best cannabis grinder? In order to smoke or process our buds, it’s usually necessary to break up the buds first, especially if they’re really dense! Most growers chop or grind their

Best Weed Grinders of 2020

SLX Grinder

The SLX was already the best grinder around, and the V2.5 (Released early 2020) makes it even better. It retains all the positives of the original while improving the build quality. It has a smooth grinding action that does not require any effort, it grinds the herbs to a perfectly fluffy consistency, and it never needs to be cleaned. So, regardless of which kind of vaporizer you have, the SLX will be the perfect companion for it.

Zeus Bolt 2 Grinder

The Zeus Bolt 2 is an appealing choice for vapers that are looking for a low-cost grinder. It has a smooth grinding action and shreds down the herbs consistently. The scoop and the carrying bag are nice additional features that can be useful especially if you’re traveling. However, this grinder needs to be cleaned more often than other manual grinders.


The Tectonic9 is a manual grinder with an electronic dispensing action that makes it easy to use while keeping it portable-friendly. The grind consistency was good, and you can drop the herbs directly into your vaporizer. However, the additional complications involved with operating this grinder, plus the fact that it needs to be charged, means that it is not for everyone.

Space Case Grinder

Space Case grinders have a solid reputation because of their build quality and durability. They do an excellent job of grinding down dry herb, but you’ll need to clean out the grinder afterward, which can be a hassle. They’re also on the expensive side, and if you can afford it, then this grinder can serve you for years.

Santa Cruz Shredder

The Santa Cruz Shredder is one of the better grinders I’ve used because of how simple it is to use and how efficient the grind is. It’s pretty expensive, though, and it involves more cleaning than I like. Despite those problems, it’s easy to admire how well-engineered this grinder is when you use it. It turns super smooth, and the consistency is perfect for vaping.

Herb/Weed Grinders Buying Guide

What are Herb/Weed Grinders?

Herb grinders, aka weed grinders, do exactly as they say, they grind up the herb into a vaporizer-friendly consistency. This is necessary since large nugs won’t fit into most vaporizers and even if they could, they won’t get vaporized completely. Grinders can be either manual or electric, each of which has their pros and cons that we’ll get into later. However, I can tell you now that the grinder is the most important accessory to any vaporizer because you can’t use the vaporizer without it. So, now that you know that, let’s take a closer look at herb grinders.

Why Is It Important To Use a Good Grinder?

A grinder will break down the herb and give it a greater surface area so that it better fills the oven of the vaporizer. This allows the oven to evenly heat the herb, which improves the flavor and vapor production of the herb. Thoroughly ground herb also provides a better high because the terpenes and cannabinoids present in the herb are released more efficiently. Well ground herb also improves the airflow of the vaporizer and makes it easier to access the vapor because the heated air can pass through the ground-up herb more easily.

Manual VS Electric Grinders

Manual or electric is the main concern here since they are the two types of weed grinders from which to choose . Manual grinders require some elbow grease of course, but they are pretty easy to use and they have a few advantages:

  • You never have to worry if they are charged or not
  • They include their own receptacle to catch and distribute the ground herb
  • The good ones rarely, if ever, need cleaning
  • Most of them include kief catchers to collect some of the most potent parts of the herb
  • They are more portable-friendly than electric grinders

Electric grinders are not as popular as manual grinders since they don’t perform as many of the same functions as manual grinders do. Plus they are more high-maintenance since they need to be cleaned and charged regularly. Still, they do have a few advantages over manual grinders:

  • Can be easily used by anyone
  • It’s a little easier to calibrate the consistency of the grind

Overall, manual grinders are the way to go, even for newbie vapers. Electric grinders should only be used by people who have trouble using manual grinders.

We've been asked by our readers to list the 10 best Weed and Herb Grinders of 2020 to use with a vaporizer- and here they are!