Smooth-wall foil container is a new and perspective type of disposable food package. This type of tray is made of special alloys, which gives them special strength. The sides of the tray have a completely flat and smooth surface, that’s why they can be hermetically sealed with foil or a plate made of foil. The resulting tray for sealing is made of a smooth wall aluminum tray (smooth wall) that will be not only strong and tight but also environmentally safe.