When the bottle cap is tightened, the "valve" on the bottle cap is pressed by the gasket on the bottle mouth, moving towards the center and thinning. When the pressure increases to a certain extent, the "valve" will break, and the carbonated beverage in the bottle will be ejected through the narrow bottle mouth under pressure, forming a "scream".
In addition, the small hole on the bottle cap also played a certain role. When the bottle cap is opened, the air pressure in the bottle decreases and the liquid is sucked into the bottle cap. When the bottle cap is closed, the air pressure in the bottle rises, and the liquid at the top of the bottle cap will be ejected. This function can ensure that the product keeps flowing under pressure, and the product will not flow out when it is inverted.
This is how the screaming bottle cap works.