Tin and metal rationing — War Production Board civilian-container restrictions

Following the U.S. entry into WWII, the War Production Board (established January 16, 1942) issued a cascade of Limitation Orders through the first half of 1942 restricting the use of tinplate, aluminum, and other strategic metals in civilian containers. Coffee roasters were directly affected: keywind tin cans, the standard 1930s package, became scarce. H&H’s response is documented in the brand line — the Flav-O-Tainer paper bag launches in 1942 specifically to replace tinned packaging, and the 1937 vacuum-can investment is partly stranded by the supply squeeze.