An interesting tidbit of information is that a number of products (butter, flour, milk, sugar,...) used to be sold in standardized weights and volumes (1kg, 500

An interesting tidbit of information is that a number of products (butter, flour, milk, sugar,...) used to be sold in standardized weights and volumes (1kg, 500g, etc.). It got repealed in the 80s under pressure from manufacturing AND commercial lobbys.