Although Yum’s vast selection of prepackaged goods from all over the world is impressive, it’s repository of specialty sodas is its most awe-inspiring feature. Even plain-old-Coke is a little bit different at Yum: they stock the Mexican version of the iconic cola, which comes in a glass bottle and has less carbonation. Of course, taking cues from the Yin-Yang principle, Yum also carries Afri-Cola, the German anti-Coke. Afri-Cola contains four times the amount of caffeine in Coke and boasts on its bottles, “without danger there can be no pleasure.”
Further into Yum’s collection of fizzy exotica, buyers can find Ramune, Japan’s answer to lemonade, Gini, a bitter lemon soda from France, and Ting, a Jamaican grapefruit-flavored soda. Yum’s even got Moxie, the first-ever mass marketed soda (in 1884, it was billed as a “nerve food”).
From a different review:
Best Place to Buy Soda Is a soda jerk someone who knows so much about soda that he comes off as a jerk? We've been looking for a soft-drink guru who could share his expertise without making us feel small, and we finally found one. The undisputed king of pop in San Francisco is Paul Frohlich, the buyer for novelty food mart Yum. He can talk about root beer, ginger ale, orange soda, and lime rickeys with discerning authority, parsing out flavors from the creamy to the spicy, and dismissing pretenders with a gentle frown. Ask for a tour of the multiple dozens of varieties stacked in boxes near the back of the store. With two kinds of Moxie and labels ranging from Dog ’n' Suds to Cock ’n' Bull, Yum has an astounding selection of nostalgia-brand and microbrew sodas from all over the country and imported from the U.K. Bulk-rate discounts are available, once you've identified your favorite brew. 1750 Market, S.F. (415) 626-9866.