Store your film stock in the protective film can, which is what it should have arrived in at the time of purchase. Do not place it near the window or door of your storage room. Ideally, exposed or unexposed film should always be stored in low temperature and low humidity to keep it in quality condition. According to the Kodak website, the film must be initially kept cool with a storage temperature of 55 degrees Fahrenheit. If the film is being stored for more than six months, storage temperature should be lowered to 0 degrees Fahrenheit. An unexposed film significantly deteriorates, especially after a year of improper storage.
Protect the film from sunlight by wrapping the film can with at least two layers of newspaper pages, especially when transporting it.
When you're bringing film somewhere in your car, do not store it in the trunk. Position it somewhere on the car floor, or cover it with thick and heavy fabrics when you need to place it on the car seat. This is to protect it from the sunlight that passes through the car windows. Unless it is a cold winter season, make sure the car's air conditioning unit is turned on to keep the can cool.
Use a black bag when removing the film from the can. The typical black bag used in film production is big enough to accommodate the entire can. Using a sense of touch, the film is removed from the can, then transferred into the film magazine. You can also use this black bag when you simply need to transfer the film to another storage can or when you need to transfer the exposed film from the film magazine back to its original can.