Wheat gluten free and FDA made wheat straw, these unbleached plant fiber disposable lids 16-32 oz bowls are also great for serving and business with very gentle food. Botanical fibers are fully bonded to the astmd-6400 standard. Meanwhile, it was very sturdy and sturdy. Wheat Straws are other disposable materials that make the same product the same as regular renewable resources each year. This light is a reliable paper-made product, a better solution than Styrofoam, and the separate base collagen material lid is completely dipped and sweat resistant for hot food up to 220 degrees. These lids do not have plastic or wax lining, and this is both hot and cold food. Bowls sold separately.