Hot and Cold

Often Japanese coffee drinks are offered hot or cold. Most convenience stores have a section for each, usually with more variety in the cold section. Today I saw for first time, hot and cold drinks offered in the same case. At first I couldn't believe this would work, but sure enough, the cans on the top were warm and the cans on the bottom were cold. I can't imagine this is very efficient or even necessary considering this store had other cold drink spaces, but it certainly is interesting.