New Coke — Abandoning the Original Formula

New Coke remains the gold standard of brand self-sabotage, eclipsing even Google+ in public backlash velocity. Coca-Cola replaced its 99-year-old formula in 1985, trusting taste tests that showed a sweeter blend winning by 10-15% in blind trials. Consumer rage erupted instantly, with 1,500 calls per day flooding headquarters and protesters gathering in Atlanta. The company capitulated after just 79 days, reintroducing Classic Coke—and watched its market share surge 14% higher than pre-crisis levels.