An accordion is a fairly costly item, especially if you opt for a high-end model, so you should learn how to properly store yours to avoid damage. Store your accordion upright on the bass side to avoid warping of the reeds. Always keep it in a dry place and at a medium temperature — too warm (for instance next to a radiator or in direct sunlight) and it could warp or the wax on the reeds could melt, too cold and it could crack.