Plymor 6″ x 3″ x 12″, 1 Mil Gusseted Plastic Bags

Are the bags food safe?. How to use the bags?. What is Mil?. “Mil” is the plastic thickness. 1 Mil =. 001″, slightly thinner than a standard sandwich bag. MATERIAL: 1 Mil (.001″ thick) transparent polyethylene (LDPE), FDA food storage compliant.