Pringles, as a product brand, is especially known for its packaging, a tubular paperboard can with a foil-lined interior (until the 1980s, the cans also contained a removable ruffled paper liner which held the chips in place) and a resealable plastic lid, which was invented by Fredric J. Baur, an organic chemist and food storage technician who specialized in research and development and quality control for Cincinnati-based Procter & Gamble. Baur's children honored his request to bury him in one of the cans by placing part of his cremated remains in a Pringles container in his grave.[38][unreliable source?]