One of the most common questions that cannabis consumers have is how long THC cartridges last before they go bad. THC cartridges are a convenient and discreet way to enjoy cannabis, but they also have a limited shelf life. The quality and potency of THC cartridges can degrade over time due to exposure to light, heat, air, and moisture. Here are some factors that affect how long THC cartridges can stay fresh and how to store them properly. The type of cannabis product used to make the cartridge. Some products, such as distillate or CO2 oil, are more stable and less prone to oxidation than others, such as live resin or rosin. The more refined and pure the product, the longer it will last. The type of vape pen used to consume the cartridge. Some vape pens have variable voltage settings that allow you to adjust the temperature and intensity of the vapor. Higher temperatures can cause the oil to burn faster and lose its flavor and potency. Lower temperatures can preserve the oil longer and produce smoother vapor. The frequency and duration of use. The more often and longer you use your THC cartridge, the faster it will run out and lose its quality. A typical THC cartridge can last anywhere from a few days to a few months, depending on how much you vape. A good way to estimate how long your cartridge will last is to divide the amount of oil in milliliters by the number of puffs you take per day. The storage conditions of the cartridge. The best way to store your THC cartridge is in a cool, dark, and dry place, away from direct sunlight, heat sources, and humidity. Exposure to these elements can cause the oil to change color, become cloudy, or separate into different layers. These are signs that the oil has gone bad and should not be consumed.