What Is the Difference Between Key Limes and Conventional Limes?

Well, in the case of “regular” limes vs. Key limes, the truth is, not a ton.Of course there’s more separating the two than meets the eye, but the differences are fairly minute and, indeed, the two can often be used interchangeably in recipes without risk of total disaster.Key limes are smaller than the standard Persian limes and have thin, leathery skin.