A paper container to hold liquids or solid material of light and heavy viscosity. Said container has an inner film liner, but not limited to, which conforms to the configuration of an outer container, and is secured to the open end, the side wall, and bottom of said outer container. The shape of the outer container may be, but not limited to, round,square or rectangular. A process to automatically insert a plastic film liner into said outer container, regardless of the shape of said outer container, with the use of heat and vacuum, thus creating a container that is leak-proof and environmentally friendly, compared to other containers on the market.