Kum & Go sweats the details when it comes to beverage selection. The West Des Moines, Iowa-based retailer opts for coarse, chewable nugget ice, because it melts slower and is less likely to water down guests’ drinks. Customization is another feature of Kum & Go’s program, with 30 different flavors and about eight flavor shots at the fountain. The c-store chain helps coffee customers make the best choice with coffee labels that scale the boldness of the six different blends, along with a brief description.

Some locations also house a craft-beer station, where guests can get their growler topped off from a selection of eight craft beers.

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