For patients, and caregivers, storing medical marijuana flower effectively maintains its potency, ensures it remains free from contamination, and minimizes potential risks…such as a safety risk. Keep any form of medical cannabis (concentrates, edibles, rolls, flower, etc.) stored away from children and pets.

When storing medical cannabis flower, specifically, make sure you have the correct temperature, humidity, and container.

1. Temperature

Keeping medical marijuana fresh by storing it in a location with the ideal temperature “between 60-68 degrees Fahrenheit. In more general terms, store your cannabis at a temperature under 70 degrees as a rule of thumb. If the temperature is any higher than that, you run the risk of damaging your product.” ZenLeaf

If cannabis flower is stored in a location that’s too hot, it’s terpenes (which give off that unmistakable smell and flavor) may evaporate, and the THC can also degrade. In fact, too much heat can transform THC into non-psychoactive cannabinoids like CBN, making your medication less potent.

Too much cold will cause the flower to dry out.

2. Humidity Control

One of the most critical factors in storing medical marijuana is maintaining the right humidity levels. Ideally, the flower should be stored in a dry place. Excessive humidity can lead to mold and mildew growth, rendering the product unsafe for consumption.

Keeping your flower in a controlled environment will help it maintain its color, aroma, and flavor profile.

To maintain the perfect environment, consider using an airtight container made of glass or plastic with a tight-sealing lid. This container should be stored in a cool, dark place, away from direct sunlight, as light can also degrade the cannabinoids in the plant.

3. Airtight Containers

Using airtight containers is crucial for preserving the potency and flavor of medical marijuana. Airtight containers prevent oxygen from getting inside, which can cause the degradation of cannabinoids through a process known as oxidation. Oxidation can turn THC into CBN, which has a less potent psychoactive effect. Blacked out mason jars work best

If you are keeping medical cannabis longer than a couple of weeks, it’s a good idea to use humidity packs with the jars.

Many dispensaries provide medical marijuana in sealed, child-resistant containers, which are ideal for maintaining freshness.

Rolling Limit

Patients (and caregivers) are eligible to purchase a maximum of 2.5 ounces in a 35-day period. This article explains what this “rolling limit” is exactly. Click here to read.

4. Avoid Plastic Bags

While it may be tempting to use plastic bags for short-term storage, this is not recommended for long-term storage of medical marijuana. Plastic bags can easily transfer odors, and they are not airtight, which means the cannabis can degrade more rapidly. Furthermore, plastic bags can accumulate static electricity, potentially damaging the delicate trichomes on the cannabis flowers.


5. Labeling and Dating

Properly labeling and dating your medical marijuana is not only helpful for keeping track of its freshness but also for ensuring you use the right strain and dosage for your condition. It’s crucial to know when you purchased the product to avoid using expired or low-potency cannabis.

Labeling can include the THC and CBD content, date of purchase, and any other relevant information. This information will help you make informed decisions about your treatment and track any potential changes in your symptoms.


6. Childproofing and Security

Ensuring the safety of children and pets is paramount when storing medical marijuana. Most states require dispensaries to sell medical marijuana in child-resistant packaging, but it’s essential to maintain that level of security at home.

Consider investing in a lockable storage box or safe to keep your medical marijuana out of reach of children and unauthorized individuals. This not only complies with legal requirements but also prevents accidents and misuse.


Storing medical marijuana is a crucial aspect of maintaining its potency and safety. Proper storage, temperature control, and labeling are all essential elements in maximizing the therapeutic benefits of medical marijuana while minimizing potential risks. Remember, a little care in storage can go a long way in enhancing the effectiveness of this valuable medication.