All Tupperware products are made from safe non-toxic non-carcinogenic materials; thus they do not release harmful chemicals to food or liquid contents. Materials & Additives used exceed US Food & Drug Administration (FDA) & Japan Polyolefin Hygienic Association standards. Tupperware products are designed to inspire. Unlike ordinary plastic products many Tupperware products have won worldwide awards such as Industrial Design Excellence Awards Reddot Award IF Seal Award and numerous others. Indeed one can use Tupperware with pride!