Well, maybe...
Hyperbole is the name for exaggeration, but really the device here is metaphor, talking about salsa as if it were fire.
You were probably taught that a simile is a comparison involving "like" or "as," while a metaphor is a comparison without "like" or "as." That's true. So Forrest Gump's
"life is like a box of chocolates" is a simile, while Bob Dylan's "time is a jet plane" is a metaphor. But you don't actually need to name both things in the sentence to have a metaphor. So when we talk about Washington and Adams and Hamilton as "founding fathers," that's metaphorical language too, even if we don't explicitly say, "the nation is a family."
So that's my pitch. If this were hyperbole but not metaphor, it would say, "this salsa is the spiciest ever made in the history of the world." But if it's doing something that salsa doesn't really do, like set things on fire, that's metaphor.