You Buy a Cake in Tokyo in August and the Shop Asks How Long You Will Be Carrying It. They Are Counting Ice Packs.

Why this phrase

Kofuku is the customer at a depachika cake counter; Hana is the shop staff. She asks the cake trade's standard carry time question, built on the carrying it around word rather than the takeout word, and it exists so she can pack the right number of gel ice packs. Roughly one pack per thirty minutes, free, good for about an hour in a Japanese summer. Tourists say hai, and walk out with a box that is soup by the time they reach the hotel. The answer is a rough number of minutes. Her wording moves around between three common variants, so the bit to listen for is the how long chunk. Say thirty minutes and you get ice packs for thirty minutes. Say two hours and they will either load you up or offer you dry ice, which some shops charge for by the hour. Say nothing and you are carrying a warm box. Keep the words straight: the gel packs are what goes in a cake box, dry ice is the upgrade for ice cream and frozen goods.