More contemporary Japanese culture
Pepsi Ice Cucumber

Last month, Pepsi started selling a drink in Japan called Pepsi Ice Cucumber. This drink will only be sold in the summer. According to Aya Takemoto, spokeswoman of Japan's Pepsi distributor, Suntory Ltd.

"We wanted a flavor that makes people think of keeping cool in the summer heat," Takemoto said. "We thought the cucumber was just perfect."

There is an English simile, "cool as a cucumber". However, in this case "cool" does not relate to temperature. It relates to emotion. Perhaps the people at Pepsi didn't know this.
Here's a video of some people trying the new drink.