How to Freeze Dry Cannabis

A step-by-step guide to freezing dry your cannabis to preserve its freshness, flavour, and potency.

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What is Freeze Drying?

Freeze drying is a method of preserving food that involves freezing the food, then reducing the pressure and temperature around it to allow the water in the food to sublimate (turn from a solid directly into a gas).

This process leaves the food with most of its original flavor, texture, and nutrients intact. It is often used to preserve delicate foods or foods that are difficult to dry using other methods, like dehydration. Freeze drying is also much faster than dehydration.

Cannabis can be freeze dried and used in a variety of ways. The most common use for freeze dried cannabis is as an ingredient in edibles. Freeze drying allows delicate flavors and nutrients to be preserved, making it a great way to add tetrahydrocannabinol (THC), cannabidiol (CBD), or other cannabinoids to recipes.

Freeze dried cannabis can also be used as a topping for desserts, added to smoothies or milkshakes, or eaten directly as a snack. It can also be ground up and used as a replacement for flower in Joints or pipes

The Benefits of Freeze Drying

Freeze drying is a process that removes water from food, making it light and easy to store. This process can be used on cannabis to create a product that is light, potent, and easy to store. Freeze dried cannabis has a long shelf life and does not require refrigeration. This makes it a great option for those who want to store cannabis for long periods of time.


When it comes to quality, freeze-dried cannabis is second to none. The process of freeze drying cannabis preserves all of the plant’s cannabinoids, terpenes, and flavonoids, so you can be sure you’re getting the most potent product possible.


freeze drying your cannabis will result in a yield of about 20-25% of the weight of your fresh material. So, if you start with 100 grams (3.5 ounces) of fresh trim, you can expect to end up with about 20-25 grams (0.7-0.9 ounces) of finished product.


When it comes to storage, freeze-dried products have a significant advantage over fresh foods. They can be stored for long periods of time without refrigeration or freezing, making them ideal for emergency situations. Freeze-dried foods also take up less space than fresh or frozen foods, so they’re great for backpacking and camping.

One of the most important benefits of freeze drying is that it preserves the nutritional value of food. Freeze-dried foods retain almost all of their original vitamins, minerals, and phytochemicals (compounds that have health-promoting properties). In fact, some nutrients are actually more concentrated after the freeze-drying process.

The Process of Freeze Drying

Freeze drying is a process that removes water from cannabis flower using sublimation. Sublimation is the process of converting a solid into a gas without going through the liquid stage. This process is also known as lyophilisation or cryodesiccation. Freeze drying cannabis is a great way to preserve your bud and keep it potent for a long time.


Freezing is the first step in the freeze drying process. First, the product is placed into a freezer where the temperature is below freezing (0°C or 32°F). The product is then left in the freezer for a period of time to allow it to freeze completely.


Drying is the process of removing water from food. Freeze drying does this by first freezing the food, then reducing the pressure and temperature around it so that the ice sublimates, or turns directly into vapor without passing through the liquid stage. This leaves the dried food with all its original flavor, color, and nutritional value intact.

Freeze drying is often used to preserve perishable foods, such as fruits, vegetables, and meat. It is also used to prepare foods for space travel and to make instant coffee and powdered milk. In recent years, freeze drying has become popular as a way to preserve flowers and other delicate items.

To freeze dry at home, you will need a freeze dryer. This is a machine that looks somewhat like a small chest freezer. It has a chamber for the food to be frozen in, as well as shelves on which the food can be placed after it has been frozen.

Freeze drying works best if the food being preserved is first frozen solid. This can be done in a regular freezer or in the freezing chamber of the freeze dryer. Once the food is frozen solid, it can be placed on the shelves of the freeze dryer. The chamber of the freeze dryer will then be closed and depressurized so that sublimation can occur.

The process of sublimation can take several hours or even days, depending on the amount of water present in the food being dried. Once sublimation is complete, opened packages of freeze-dried foods can be stored at room temperature indefinitely without fear of spoilage or loss of quality.


Once your cannabis is dry, you’ll need to store it in an airtight container. We recommend using a glass jar with a silicone seal. If you are using a mason jar, make sure to put a layer of parchment paper between the lid and the Weed to prevent any moisture from forming and ruining your stash.

Tips for Freeze Drying Cannabis

Freeze drying cannabis is a great way to preserve your harvest. Not only does it preserve the potency of the THC, but it also preserves the terpenes and flavonoids. freeze drying cannabis is simple and does not require any special equipment. All you need is a freeze dryer and some patience. Here are some tips on how to freeze dry cannabis.

Use Fresh Cannabis

One of the most important tips for freeze drying cannabis is to start with fresh material. If your cannabis is already dry, it will not rehydrate during the process and will not be as potent. We recommend starting with fresh, frozen cannabis that has been trimmed and cured for at least 2 weeks. This will give you the best results.

Pre-Freeze the Cannabis

To ensure that all the water is removed from your cannabis, it’s important to pre-freeze the material. This can be done by spreading out your starting material on a baking sheet lined with parchment paper and placing it in the freezer for at least 48 hours. Doing this will help to prevent ice crystals from forming on your cannabis during the freeze drying process, which can cause it to lose potency.

Use a Vacuum Sealer

If you want to get the most out of your freeze dried cannabis, then you should definitely use a vacuum sealer. Vacuum sealing will help to preserve the potency and freshness of your cannabis for much longer than just storing it in a container.

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