... hot/cold ice pack. Keep cooling time longer. Non-toxic, non-irritating smell. These are hot/cold ice pack & ... * For milk, soy milk, beverages, wine, chocolate, fruits, vegetables and other food refrigeration* For biological, special drugs, plasma ... time, better* Non-toxic, non-irritating smell, not combustion and explosion, non-corrosive, reusable. Long storage, non-polluting, anti-bacteria ...