Storing cannabis properly plays a big part in its quality and potency. The elements that affect cannabis include temperature, humidity, and exposure to air and light. The best way preserve weed is to store it in an air-tight glass jar in a cool, dark place. Temperature: Flower should be kept at an ideal temperature of under 70 degrees Fahrenheit, according to Corwin. Extreme temperatures — both too hot or too cold — can dry out the herb's terpenes and cannabinoids. Humidity: When kept in humid environments, cannabis can grow mold, and in dry conditions it can become brittle and harsher to smoke. Keeping your flower in a controlled environment will help it maintain its color, aroma, and flavor profile. Humidity packs can help you monitor and control humidity levels. Air and light: Exposure to air and light have a direct impact on temperature and humidity. UV ra...