Cola slushies that self-freeze are available to purchase from vending machines in Hong Kong. This cool beverage is just what you need to get you through the dog days of summer. The innovative method of self-freezing keeps the beverage cold for hours, eliminating the need for ice in the process.In the 1970s, Japan was the country that introduced the world’s first cola slush. It didn’t take long for it to gain traction in Asia, and it’s now widely consumed across the globe. The original version of the self-freezing Cola slush was served in Hong Kong back in the early 2000s.One of the drinks that competes for the title of most popular in Hong Kong today is a self-freezing Cola slush. It can be purchased from a variety of vending machines located all around the city.Therefore, the next time you are in Hong Kong and you are seeking for a drink that will refresh you, make sure to try the self-freezing Cola slush!