Packaged salt is the type of salt most familiar to consumers. American consumers are used to buying 26-ounce “round cans” from their grocery store. North of the border, Canadians choose their table salt in rectangular boxes. South of the Rio Grande and in much of the world, sealed clear plastic bags are most common. In Europe, salt is often packaged in extruded plastic cylinders. In markets where modern packaging is unavailable, salt can be found measured from large burlap sacks. Iodized salt requires sealed containers to prevent loss of the iodine.