Abstract: A method and tools for forming a hermetically sealed container from a previously used can characterized by removing a portion of a top of a can radially inward of an inward edge of an annular depression of the top to form an opening, placing a continuous sealing member in the annular depression, assemblying a lid on a top with the lid having an annular shoulder for engaging the sealing member and an annular flange which has a reversed bend and extends from the shoulder over the rim to provide an annular skirt which extends along the outer surface of the rim and terminates therebelow, forcing the lid into sealing engagement with the sealing member, and while holding the lid in the sealing engagement, crimping the annular skirt beneath the rim to hold the lid in the sealing engagement.