PenSimple Is A Brand New Take On What An Herb Grinder Can Be

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Pen Simple Grinder Specs


7" x 1" x 1"




Made in China


4.3 Ounces

Rounded Kief Catcher


Replaceable Filtering Screen


Number of Teeth



Pen Simple Review

One thing about herb grinders is that almost all of them seem to have a similar design and shape.  There may be slight variations between each model in terms of teeth shape, size, number of pieces, etc., but at the end of the day they use the same basic principals to grind your herb.  This entails putting the herb in the top chamber of the grinder, and turning the lid so that the teeth grind your stash to perfection.

In general, I go by the mantra of if it isn’t broke, don’t fix it, but that doesn’t mean that the herb grinder market couldn’t use some fresh ideas.  For any readers would like a new take on herb grinding, the folks at PenSimple have got you covered.  They have completely reimagined the herb grinder and come up with the PenSimple Grinder.  It looks totally different than your run of the mill four piece aluminum grinders, and because of this has some unique features.



PenSimple Grinders are made of aircraft-grade aluminum, meaning this thing is built to last.  We are glad to see PenSimple use such quality materials on their grinders as it shows they take quality seriously.  Another positive is that it doesn’t appear that PenSimple’s design requires any glueing of components, making it less likely that any individual part will break loose.


As with the namesake of the PenSimple, the shape of this grinder is akin to a pen.  This makes it easy to hold and manipulate so that you can aim the herb with precision.  Dimensions for the PenSimple are 7″x1″x1″ with a weight of only 4.3 ounces, making it very lightweight compared to typical aluminum weed grinders.

There are four pieces that attach with the PenSimple Grinder.  As with standard grinders, the PenSimple has a grind chamber made up of a lid with teeth and bottom with holes to allow the ground herb to fall through.  With PenSimple there are only a few small teeth on the lid, but none on the bottom part of the grind chamber, like you see with typical herb grinders.

It is important to realize that the PenSimple does not grind your herb for you.  This is still a manual process.

What it does do is help to dispense the ground herb out of the tip making it easier to get the herb in your joint or bowl without spillage.  With a simple push of a button, your ground up stash is neatly dispersed with pinpoint accuracy.  I love this feature and is certainly a step up from typical grinders where you have to use your fingers or scraper tool to manipulate the herb.

Three Grinder Modes


Full Mode

This is default mode of the PenSimple.  Load the herb in the grinding chamber, and once ground it is ready to be unleashed at the push of a button.

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PenSimple Grinder

Maximum-Storage Mode

For when you are traveling, or on a hiking trip having the maximum amount of herb ready to go is a must.  Maximum-Storage Mode allows you to store up to 3 grams of your finest herb by removing the top and bottom grind teeth.  In this mode you cannot grind any additional herb.

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Direct Grind Mode

Take out the storage compartment and then you have an efficient grinding machine.  This is perfect for when you want to keep a small stash fresh and grind on the go.  This mode holds up to .25 grams but can be ground on command and still dispensed using the electric point and shoot tip.

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What PenSimple Should Improve

In the future, PenSimple should strongly consider adding an electric element to the herb grinding process.  Having both an electrical grinding process and the automatic dispensing tip would go a long way to set the PenSimple apart.

Another issue with the PenSimple is that the 1-inch diameter design creates an environment where it is easy for herb to clog the unit.  PenSimple will have to choose between keeping their grinder portable-friendly with a frequent cleaning requirement or to make the diameter larger meaning the grinder would become slightly less portable.


PenSimple has made some bold innovations to the herb grinder, and as such you can expect to pay more for this grinder than your average four-piece aluminum grinder.  At $60, the PenSimple is not a bargain, but is cheaper than premium American Made grinders like Phoenician.  This is a reasonable price point for this product.

The Final Grind

PenSimple has changed the herb grinder game with its point and shoot design.  This certainly makes filling your bowl easier than ever before.

We wish that PenSimple would have added an electric grinding component, and are surprised that the actual grinding process is still manual.

Whether this is a good choice for you will depend on how much you value the point and shoot electric dispensing feature.  If this is a big deal to you, then the PenSimple is really the best choice.  However, for those who care equally about other functions like storage capacity, grind quality, and grinder jamming, we recommend you look at conventional high quality grinders.

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FAQ – Pen Simple Grinders

Is the battery rechargeable, or does it need replaced?

The battery is able to be recharged via a micro-usb connection. Each charge support about 100 uses.

How loud is this grinder when in use?

Has a slight whirring noise while in use, but not overwhelming and will not draw attention.

Does this grinder have a kief catcher?


Does this grind fine enough for vaporizer use?

No, you’ll want to look into a different grinder if you want to use herb via a vape.

About Brian Cooper

Brian Cooper is a lifelong resident of Ohio and has been an advocate of cannabis use for many years. When not partaking, Brian enjoys to hike, ride his bike, and play guitar. Brian started ExpertsofHerb in 2014.