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Kannastor GR8TR Grinder

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Whether you’re smoking some dank, sticky buds or vaping flowers, you’ll benefit big time from having a good grinder.

How about having the best grinder?

The GR8TR Grinder by Kannastor is pretty much the Ferrari of handheld grinders. If you’re rolling papers or packing bowls you’ll want the ability to control how fine or coarse your grind is. Finding the perfect grind can greatly enhance your vaporizer experience especially.

The Kannastor GR8TR Grinder V2 is the new and improved model of the former, first generation GR8TR Grinder.

The GR8TR grinder is the only grinder we’ve come across that has both interchangeable grinder plates and mesh screens, and without the need for tools to swap them. This allows full customization of your grind so that you can achieve the optimal size grind from coarse to fine, depending on your vaporizer and smoking method.

kannastor gr8tr grinder screen
Kannastor GR8TR grinder has interchangeable mesh screens.

The mesh screens give you the option to determine how finely you want to catch your kief, pollen, resin or whatever you call it – that good THC dust.

The grind plates and mesh screens are easily swapped out using Kannastor’s easy-change design, which does not require any tools.

This is one over-engineered bad boy of a dry herb grinder.

Here’s a few quotes from some verified buyers on Ryot’s website:

“Somewhat expensive… worth it though. Blew expectations out of the water.”

Sasha – Ryot.com (Collected via Trustpilot)

“This is the best grinder I have ever used! Without question. The fine grind setting makes my Pax 3 hit even better. The Medium (which doesn’t make sense since it’s the largest setting & the only other setting too) is great for rolling or packing. The price point of $90 is uncomfortable. I paid it & don’t regret it, but if I could’ve gotten it for less I’d have felt better about the purchase. If you can get this grinder on sale, it’s worth it.”

Max – Ryot.com (Collected via Trustpilot)
Kannastor GR8TR Grinder
Top of the line dry herb flower grinders. Fully custom grinder with interchangeable blades for a coarse or fine grind, interchangeable pollen screens, and large storage compartment.
$76 $90
Discount with code at Ryot.com.

What’s Included

There’s several options as far as Kannastor GR8TR grinder models.

The models we’re reviewing are the multi-chamber jar grinder with two grinder plates (one for a fine grind and the other for a more coarse grind) and one mesh screen.

kannastor gr8tr flower grinders
Multi-chamber jar body and single chamber Kannastor grinders.

We’re also looking at the small, two-piece single chamber grinder as well. Both grinders include a storage bag.

Standard Features of the GR8TR Grinder

All Kannastor grinders are designed to be modular, meaning they have interchangeable parts and can be reconfigured for various purposes.

Standard features for the Kannastor GR8TR Jar Body Grinder include:

  • Jar Body GR8TR Grinder
  • Premium Food Grade Quality
  • GR8TR Storage Lid
  • Spare Grinder Plate Storage
  • Anti Friction and Residue Rings
  • Micro Teeth
  • Deep Dish Grinding Chamber
  • Easy Change GR8TR Plates
  • Easy Change Grinder Screen
  • Polished Puck Base

Tech Specs

Specs for the Kannastor GR8TR Grinder Jar Body:

Dimensions3.75 inches (H) x  2.125 inches (D)
Weight
MaterialsFood-grade 60/61 hardened anodized aluminum body; stainless steel mesh screen
StylesMatte black, Matte silver, Rose gold
Kannastor GR8TR Grinder
Top of the line dry herb flower grinders. Fully custom grinder with interchangeable blades for a coarse or fine grind, interchangeable pollen screens, and large storage compartment.
$76 $90
Discount with code at Ryot.com.

Our Experience

While there are plenty of grinders on the market, the GR8TR is one of our favorites for its versatility and performance.

The multi-chamber jar body model is a bit too large for easy carry, but it performs so damn well. The teeth on the grinder plates are super sharp and it grinds up your buds with very little friction. Shredding your flowers with this thing is buttery smooth and takes just a few turns of the wrist.

ryot kannastor gr8tr grinder
Designed with anti-friction rings for a super smooth grind.

The coarse plate makes an excellent grind for rolling joints. The finer grind plate works well for packing bowls in dry herb vaporizers. A finer grind increases surface area and allows the bud to vape more evenly in a vape’s heating chamber.

ryot kannastor gr8tr grinder multi chamber

The stainless steel mesh screen and pollen catcher works really well. There’s even an option to swap different size mesh screens depending on the size of resin you want to trap – this is a first!

The grinder can also be reconfigured into a storage puck if you want to carry it in your pocket or remove the pollen compartment.

The small, two-piece single chamber Kannastor grinder is the perfect size to carry with you everywhere. This model also has really sharp teeth and is great at shredding flowers. It’s plain and simple – also a lot cheaper!

kannastor gr8tr small grinder
Two piece, single chamber Kannastor grinder.

If you’re a vaporizer enthusiast or love switching between your vapes and smoking flower, having a top notch grinder is one of the most useful smoking and vaping accessories.

Price & Where to Buy

Kannastor GR8TR Jar Body Grinder retails for $90 and is available directly through Ryot.

Kannastor single chamber grinder retails between $15 to $26 depending on the size. There’s three size options (1.5″, 2.2″, and 2.5″) and the grinder is available in two styles (black or silver).

Warranty Information – All Kannastor grinders are backed by a limited lifetime warranty.

Kannastor GR8TR Grinder

$76 $90
Discount with code at Ryot.com.
Top of the line dry herb flower grinders. Fully custom grinder with interchangeable blades for a coarse or fine grind, interchangeable pollen screens, and large storage compartment.

Not ready to spend $90? No worries. Ryot offers cheaper options as well. View all Kannastor GR8TR Grinders here.

Kannastor GR8TR Grinder Photos

JB

JB is the founder and chief editor at Cannabis Vape Reviews. Having worked in the cannabis industry for several years, he helped manage one of the leading tech-based cannabis delivery services in Los Angeles and is a vaporizer enthusiast.

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