Soda – yes, even diet soda – is notoriously bad for you. High in calories, sugar and high fructose corn syrup, it can contribute to weight gain, diabetes and other health problems.

The new machine is almost an antithesis to the company’s early appeal. Aside from its large size, the Keurig Kold takes 90 seconds to make a beverage, which is a lot longer than it takes to pry ...