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How Long Does Kief Last? Does it Go Bad?

Have you ever seen a mysterious green substance at the bottom of your grinder?

It’s called kief, and it is how many marijuana users get their daily dose while avoiding the harshness of combustion.

But what exactly is kief, how long does it last, and does it go bad?

These are common questions that countless consumers have concerning this cannabis concentrate—and we plan to answer all of them in-depth!

In this blog post, our experts will provide detailed insights into the properties and shelf life of quality kief, so buckle up for an informative ride as we dive deep into one of the most beloved cannabis products around.

What’s Kief?

Kief is a form of cannabis concentrate made using the trichomes—the small crystals on the flowers of female cannabis plants.

It’s usually collected by rubbing the buds with a device called a kief grinder, then layering it in-between screens that sift out the finest particles.

High-powered extraction techniques are also sometimes used to produce large amounts of kief more efficiently.

As one of the oldest and simplest forms of cannabis concentrate, producers have refined it over thousands of years and use this commonly available product to create many other concentrates like hash and edibles.

Kief’s flavor profile varies between batches depending on genetic strain, soexperimentation can help find the perfect batch most suited for particular preferences.

How to Store Kief?

When it comes to storing kief, there are a few things you need to take into consideration.

The first is that kief is very potent and should be stored in an airtight container in a cool, dark place.

The second is that kief is best used within six months of being collected.

After that, the THC starts to degrade and the kief will lose its potency.

The best way to store kief is in a small glass jar with a tight-fitting lid.

Place the jar in a drawer or cupboard away from any light sources.

If you’re going to be storing your kief for more than six months, it’s a good idea to keep it in the freezer.

This will help preserve the THC and keep the kief as potent as possible.

When it comes time to use your kief, there are many different ways you can do so.

One popular method is to sprinkle it on top of your regular cannabis flower when you’re smoking or vaping.

You can also add it to edibles or infuse it into oils and tinctures.

However you choose to use it, just remember that a little goes a long way.

How Long Does Kief Last?

Kief is the powdery substance found on cannabis flowers that are rich in trichomes.

Trichomes are the crystalline formations that contain all of the active compounds desired by users.

When collected, dried, and stored properly, kief can last for a very long time.

If it’s sealed airtight and kept away from light and moisture, some say kief can last up to 2-3 years.

That said, people tend to use their stash within a year or so because they want to ensure they get the full potency out of their kief before it passes its peak freshness.

As with any product, more frequent use leads to quicker turnover and freshness – so if you plan on using your kief often, store it in proper conditions and replace occasionally.

Can You Freeze Kief?

Yes, it is possible to freeze kief; however, it is important to take a few extra precautions when doing so.

Before freezing kief, it is recommended to mix in a little bit of oil or wax, as this helps prevent the powder from crumbling and clumping up when frozen.

Kief should also be stored in airtight containers and frozen at sub-zero temperatures to preserve flavor and potency for extended periods of time.

Simply tossing kief into the freezer without other precautions will not extend its lifespan and can even degrade quality.

Freezing should ideally be done for no more than a few weeks at a time due to changing environmental conditions inside a freezer that can alter the flavors.

How to Tell If Kief is Bad?

Kief is the collection of trichomes, or resin glands, that are found on cannabis plants.

These glands contain high concentrations of THC, CBD, and other cannabinoids.

Kief can be collected from the plant material and used to make hash, edibles, or smoked on its own.

Since kief is such a concentrated form of cannabis, it can go bad if it’s not stored properly.

Here are a few signs that your kief has gone bad:

  • The color has changed from green to brown or black.
  • The texture has changed from powdery to hard or crumbly.
  • There is mold growing on the kief.
  • The smell has changed from fresh and floral to musty or skunky.

If you notice any of these changes in your kief, it’s best to discard it.

Otherwise, you run the risk of smoking or consuming moldy or otherwise contaminated cannabis.


Kief lasts for a pretty long time, especially if it’s stored properly.

However, Kief can go bad if it’s not stored in an airtight container or if it’s exposed to light or moisture.

If you’re not sure if your Kief is still good, it’s best to err on the side of caution and throw it out.

When it comes to Kief, it’s better to be safe than sorry.

How Long Does Kief Last? Does it Go Bad?

5 from 1 vote
Prep Time 15 minutes
Cook Time 15 minutes
Total Time 30 minutes
Course Shelf Life
Servings 1 Serving


  • Kief
  • Air-tight containers or Ziplock bags
  • Labels and markers


  • Store your product in an labelled container in a cool, dark place like the pantry or fridge.
  • If your food is frozen, allow it to thaw in the fridge before cooking.
  • Make sure to look for signs that your food has gone bad before eating it.
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