Fortune-telling with beer lid _ The meaning of beer lid

How many teeth are there in the lid of a beer bottle?

The lid of a beer bottle has 2 1 teeth.

The beer caps in glass bottles all have 265,438+0 teeth, and the caps with multiples of 3 are evenly sealed, which is closely related to the triangle stability principle. For example, 24 sawtooth is better, but considering the complexity of the work and the mechanical force of the filling machine head, 265,438+0 is more cost-effective. Pater invented 2 1 serrated bottle cap, which has been used as an international standard.

Moreover, regardless of the capacity of beer bottles of 640ml, 580ml, 500ml and 330ml, if the bottle cap is flattened and unfolded into a circle with a diameter of 36mm, the sealing and biting degree between the bottle cap and the glass bottle should be mainly considered under the condition that the number of serrations and the material size are relatively fixed, because the beer contains about 0.5% carbon dioxide, if the sealing is not good, it will cause pressure leakage and affect the drinkability of the beer.

Why is there 2 1 sawtooth on the cap of each beer bottle?

At first, the sawtooth number of beer bottle caps was not 265,438+0. There used to be 23 or 24 serrated bottle caps. With the progress of industrialization, the original manual capping method was changed to industrial capping, and the 24-tooth cap was first pressed on the bottle with a stamping press. After the appearance of automaton, it would not happen if it was changed to 23 teeth, and finally it was gradually standardized to 2 1 tooth today.

Beer contains a lot of carbon dioxide, so there are two basic requirements for bottle caps, one is good sealing, and the other is a certain bite force. This means that the number of pleats of each bottle cap should be in direct proportion to the contact area of the bottle mouth to ensure that the contact surface area of each pleat can be larger, and 2 1 tooth is the best choice to meet these two requirements.