Beyond the half-gallon jug, Boost! found a second life as a frozen slushie and as a fountain-dispensed drink. In South Jersey delis and convenience stores, slushie machines and jet-spray dispensers turned the concentrate into a cold, poured drink, the same soda-fountain idea Benjamin Faunce had started with, updated for the corner store.
Slushies
Boost! slushies were a warm-weather fixture, though local shops treated them as a year-round item. The frozen format kept the drink's flat, cola-citrus character while adding the texture of shaved ice, a combination that regulars sought out specifically. Because the base was already a concentrate, adapting it to a slush machine was straightforward: the syrup was diluted and run through the freezer barrel that a store might otherwise use for generic blue-raspberry or cola slush. The result was a version of the drink that leaned into its sweetness and was easy to sell to children and passers-by who might never have bought a half-gallon jug.
For a shop, the slushie also solved an impulse-purchase problem. A jug of concentrate is a considered, stock-up purchase, but a cup of frozen Boost! could be sold to anyone walking past the counter on a hot afternoon. That made the frozen format a small but reliable way for a store to convert curiosity into a sale, and it introduced the flavor to people outside the households that had always kept it in the refrigerator.
Fountain and jet-spray service
Jet-spray and fountain machines let a store serve Boost! by the cup rather than the jug. For small businesses this was the closest thing to the original pharmacy soda fountain, where the concentrate was mixed to order. A jet-spray unit chilled and dispensed the diluted drink on demand, so a deli could offer a cold poured Boost! without keeping cases of finished bottles on hand. It kept the brand visible on counters across Burlington County and the surrounding Delaware Valley, in exactly the kind of independent shop that stocked it in the first place.
A return to the counter
There is a neat symmetry to this chapter of the drink's life. Boost! began as a fountain syrup mixed to order behind a Riverside drugstore counter in the early 1900s, moved into the take-home half-gallon jug that most people remember it by, and then partly circled back to the counter as machines put it in a cup again. The equipment changed from a marble soda fountain to chrome slush barrels and jet-spray heads, but the underlying idea, a concentrated syrup turned into a cold drink at the point of sale, stayed the same across more than a century.
Where the machines turned up
Frozen and fountain Boost! was never a national vending program; it lived wherever an independent operator chose to run it. Farm markets, delis and convenience stores in South Jersey were the usual homes for a machine, and the drink's small geographic footprint meant a slush of Boost! was something visitors simply could not find once they left the region. That scarcity is part of why the frozen version is remembered as fondly as the jug.
Two textures, one flavor
What united the jug, the slushie and the jet-spray cup was the underlying syrup rather than any single way of drinking it. A household mixing concentrate with cold water, a child holding a frozen cup on a summer afternoon, and a customer taking a poured drink from a deli machine were all encountering the same base flavor in different states. This adaptability is unusual for a small regional brand. Many local sodas exist only as a bottled product; Boost! managed to move between still, frozen and fountain-dispensed forms while keeping the flat, cola-citrus character that regulars recognized instantly.
A machine as a landmark
For the shops that ran them, a Boost! slush or jet-spray machine could become a small landmark in its own right. Regulars knew which corner store or farm market kept the frozen version going, and a working machine was a reason to stop in. Equipment like this also required upkeep, from cleaning the barrels to keeping the mix at the right consistency, so a shop that maintained one was signalling a genuine commitment to the drink rather than simply stocking a jug on a shelf. Where those machines ran, they helped anchor Boost! to specific places in local memory.
For the drink's origins at the Riverside soda fountain, see the history of Boost! soda, read where it was sold across South Jersey, or place it on the map of vanished regional sodas.