-- Store them in a place that is dry and avoid direct sunlight. -- Leave enough room in the top of paintball container to allow for sufficient ventilation. -- Do not place or store the paintballs outdoors. -- Be particularly careful to keep all containers straight and upright.

Store paintballs between 60 and 70 degrees Fahrenheit, in not more than 50 percent relative humidity. Humidity and moisture make paintballs swell up since both the gelatin shell and the paintball's fill are moisture-sensitive. Once they swell, they'll never be the same again. Since you cannot take the moisture back out, it is very important to keep paintballs in moisture-barrier bags of containers. You can use a plastic bag that is four mils or more thick, like a moisture-barrier freezer bag. Paintballs can be stored in tubes or pods that have snug- fitting caps. Keep the containers closed as much as you can, at home, during transport, and at the field. The more humid it is, the more important it is to protect your paint from the humidity. DO NOT store paint in your refrigerator. Paintballs work well in most weather conditions, but they should be kept well protected from any temperature extremes. Keep them out of the heat and sun, or the raw cold. At the field, keep them sealed, shaded from the sun and protected from the cold. Too much heat can cause the gelatin shell of a paintball to soften, meaning the paintball might deform, bounce more, or stop feeding into the paintgun. Never leave your paint in the direct sun or in a hot trunk. In colder weather, when on the field, try to keep paintballs at 60 to 70 degrees. Paintballs that get too cold will eventually become deformed, and you cannot make them back into round paintballs. The most common complaint about paintballs is that they don't fit in someone's gun. What you usually will find, especially in humid climates, is that the person did not take care of the paint. When you see bags or boxes of paint left open or left outside when it's hot or cold, don't be surprised to hear complaints about the paint

All paintballs I have should be stored: - airtight container - out of direct sunlight - not in warm/hot place that would cause them to melt (An airtight container in either a cupboard drawer or under the bed is more than enough for me!)