To retain the potency of hot cold packs, it is important to store them correctly. It is recommended that such packs are kept in cool and dry places sheltered from sunlight. A refrigerator should be used for cold packs but hot packs do not need any cooling just storage at normal room temperatures. Do not use the packs under extreme temperatures because this destroys the pack material and reduces the pack efficiency. Assess the packs for damage and refurbish them as appropriate to the state needed for proper pack functionality.