FIELD: means of closing bottles.
SUBSTANCE: invention relates to bottle caps capable of retaining a high pressure of carbon dioxide contained in the drinks contained in the bottle. The bottle cap comprises a sealing sleeve (1) installed in the neck of the bottle, and an outer shell (5) mounted on the sealing sleeve (1), fixed to each other in the axial and radial direction, while the outer surface (7) of the outer shell (5) comprises a hole (6) adapted for placing in it the upper end wall (3) of the sealing sleeve (1).
EFFECT: bottle cap allows testing the saturation of the final product with carbon dioxide while maintaining the necessary tightness of the closure and without losing the concentration of carbon dioxide in the container on any type of aphrometers.
5 cl, 3 dwg
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