Beer Bottle Cap Mystery Uncovered: Why Every Cap Has Exactly 21 Stripes, Reveals 130-Year History
Lifestyle
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News18 Punjabi•01/12/2025
Beer Bottle Cap Mystery Uncovered: Why Every Cap Has Exactly 21 Stripes, Reveals 130-Year History
- •Beer bottle caps have exactly 21 stripes.
- •The 21-stripe design dates back to 1892.
- •Inventor William Painter created the crown cap.
- •21 stripes ensure a strong seal and easy opening.
- •The design prevents leaks and maintains carbonation.
Why it matters: Understanding the cap design reveals how engineering impacts everyday products you use.
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