McDonald's Japan locations will add a purple sweet potato milkshake to their drink menus.

The root vegetable, also known as murasaki imo, is a popular food in Japan.

The "Murasaki Imo McShake" will be available for a limited time starting on September 26.

Fancy some purple shakes?



McDonald’s Japan has put a seemingly unconventional twist on one of its beverages, giving it an unusual purple hue that would lead many to believe it’s grape-flavored. In reality, the drink is created using an autumn seasonal food that’s widely loved across Japan: murasaki imo or purple potato.

This Japanese sweet potato naturally comes with its purple coloring, which has taken over McDonald Japan’s autumn special ‘Murasaki Imo McShake’.

Those curious to experience its taste and are in Japan can get their hands on a cup starting 26 September. It will be available at JP¥120 (US$1) for the small size and JP¥200 (US$2) for the medium option. The drink will be available for a limited and unspecified time.

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