Enjoy waste free meals with your family and friends with our selection of stainless steel food flask. Made from top quality stainless steel, this food flask will keep your food fresh and delicious. Most plastic food containers contain BPA, phthalate and lead; toxic materials that are not only harmful to our bodies but our environment as well. None of our food flasks contains any of these dangerous materials. Klean Kanteen's food flasks feature insulated leak-proof screw caps while U-Konserve's food flasks feature leak-resistant lids. Both stainless steel food flasks are reusable and made to last for a very long time.