FIELD: food industry. SUBSTANCE: container is designed for warming up of food in microwave and conventional ovens. Container made of thin or thick cardboard is provided with at least one layer of polymeric coating found, according to invention, at least on side of base in contact with food. Coating has polymeric structure with crosslinks. Structure is formed by inorganic polymeric skeleton (chain or cross-link) containing alternative atoms of silicon or oxygen and including side chains and/or cross-links formed by organic groups or chains. Base is formed by uniformly coating the cardboard with mixture containing reaction ingredients. Mixture polymerizes forming fat-resistant glass-like heat-resistant coating on one side or on two sides of thin cardboard (two-side coating is preferable), thus making the base. Organosilanes reacting with organic compounds forming cross-links, such as epoxides, can be used as polymerizable ingredients. EFFECT: forming of water-and-fat resistant base of high thermal stability. 15 cl, 6 tbl, 2 dwg
