Crystal Pepsi

Crystal Pepsi removed the color from cola and discovered that transparency was not the same thing as clarity. The early-1990s product vanished, then returned in limited runs as nostalgia for the decade that had already rejected it. A soft drink whose strongest flavor is now memory.nnSources: PepsiCo — 2016 limited return; Smithsonian — consumer taste and Crystal PepsinnImage: Mike Mozart / Wikimedia Commons — CC BY 2.0.