Paper cups date to imperial China around the second century BC, where decorated cups called chih pei served tea to families like the Yu of Hangzhou. Their modern version came from fear. In early 1900s America, schools, offices, and train stations shared a single glass or tin dipper at the water barrel. After germ theory took hold, Lafayette College biology professor Alvin Davison published Death in School Drinking Cups in August 1908, documenting bacteria on Easton, Pennsylvania school cups, and the Massachusetts State Board of Health reprinted it in 1909. Boston inventor Lawrence Luellen had already built a one-cent water vending machine that dispensed single-use paper cups in 1907, and with Hugh Moore he sold them to railroads such as the Lackawanna in 1909.

The Health Kup was renamed the Dixie Cup in 1919, after Alfred Schindler’s Dixie Doll Company, with ads about a sanitary age and a cup touched only by you. Making paper hold hot coffee took engineering: dense virgin-fiber cupboard, a rolled rim, early clay and wax linings that tasted like wet cardboard, then polyethylene that heat-seals the seams, and water-based flexographic inks. That plastic lining keeps cups out of ordinary pulping, and a lifecycle comparison with polystyrene foam cups finds no clear environmental winner.

• A 1942 Massachusetts State College study found washing reusable hospital glasses cost 1.6 times more than single-use paper cups.
• The Dixie cup-shaped water tank on the Wilson, Pennsylvania factory stood until April 30, 2026, and Saul Bass redesigned the logo in 1969.
• Humans use about 130 billion paper cups a year, and a 16-ounce cup with sleeve carries about 0.253 kilograms of CO2.
• PLA cornstarch linings contaminate standard plastic recycling, while mineral-blended EarthCoating lets cups pulp normally.
• Piñapel cups made from Philippine pineapple leaves lost 55 percent of their mass in four weeks.