FIELD: storage containers. SUBSTANCE: method involves partially filling container with liquid so as to provide primary delivery space; attaching by glue hollow insert provided with upper limited opening and lower limited opening to container bottom, with hollow insert being partially filled with similar liquid so as to provide secondary delivery space, with upper limited opening being communicated with delivery space, when limited opening is immersed into liquid. Upper limited opening is sized so that due to bubble boiling effect gas is prevented from escaping from delivery space into liquid body until high pressure difference occurs upon opening of container by means of lug. EFFECT: simplified construction and increased efficiency due to effective usage of delivery space. 22 cl, 17 dwg
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