A Banknote Can Be Folded 4,000 Times: Our currency is pretty durable. The Bureau of Engraving and Printing, the sole producer of U.S. paper currency, says it would take 4,000 double folds, forward and backward, for a dollar bill to tear. It might be because paper money isn’t made of paper. It’s a blend of 75% cotton and 25% linen with tiny blue and red synthetic fibres of various lengths evenly distributed throughout the bill.
100 Mind-Blowing Engraving Facts
Did you know that money has a short life span? On average a $1 bill lasts only 18 months, a $5 bill will last two years, and a $10 bill will last three years. This is why the US Bureau of Engraving & Printing has to reprint $541 million worth of currency each year.