Coca-Cola revived the original formula 79 days after New Coke and the brand soared

In 1985 Coca-Cola's share lead had been slipping for 15 straight years, so the company changed its flagship formula, backed by taste tests of nearly 200,000 consumers. New Coke launched on April 23, 1985 — and the bond consumers felt with the original brand proved stronger than any taste test.

The backlash was immediate: by June 1985 the consumer hotline was receiving 1,500 calls a day, versus 400 before the change, and complaints flooded into offices. On July 11, 1985 — 79 days after New Coke — the original formula returned as Coca-Cola Classic, and New Coke was phased out, eventually renamed Coke II.

The company's own history calls the return a turning point: the outcry was replaced by affection for Coca-Cola Classic, and the brand 'soared to new heights'. Chairman Roberto Goizueta later framed the episode as proof of taking intelligent risks, and president Don Keough said the company realized the consumers owned the Coke brand.

The original formula returned to shelves in 79 days as Coca-Cola Classic; the company says the brand 'soared to new heights' as consumers' affection replaced the outcry.

The taste test measured preference, not the emotional ownership consumers felt for the original.

Restoring the formula in 79 days turned anger into loyalty and made the brand story legendary.

Goizueta's public framing converted a blunder into a demonstration of listening.

The change made the original's return an event, driving attention to the brand.

When customers reject a change, speed of reversal is the strategy: restore what they felt they owned, and the fiasco becomes a loyalty proof point.

Coca-Cola Classic outsold New Coke and became the company's flagship for decades; the 'Classic' label was finally dropped in 2009 as a relic of the episode. New Coke remains the textbook case of a failed product launch and a fast reversal — and of how a brand's emotional equity can outweigh any lab-tested formula.