There are some gaps in the spiral of the beverage bottle cap. What is going on?
There are such gaps in the spiral of the bottle mouth of the cola, mineral water and iced black tea. The spiral is not connected, and there is a gap in the corresponding position on the bottle cap. Why is the bottle mouth designed like this?
Since there is a threaded notched bottle opening, there must be a bottle mouth with no thread. Both are the same type of bottle mouth, and the left thread has no gap.
Why do the same type have to be made in two styles?

Specifically, the left side is the 1881 hot-filled bottle mouth, and the right side is the 1881 sterile bottle mouth, which is used for hot-filled beverages and cold-filled beverages. In addition to the notch of the thread in the hot filling mouth, the inner diameter of the bottle mouth is smaller, the wall thickness of the bottle mouth is thicker, and of course there are some other small differences.
It is the filling process of the product that determines which style of bottle to use!
In the process of filling the contents into the bottle, it is inevitable that the contents will splash on the bottle mouth. Rinse off with water after filling. This gap, one of the main functions is to make the water in the rinse bottle mouth easier to flow down. If the washing is not clean, the contents remaining in the mouth of the bottle will breed mold and attract small insects.
The heat is not filled with this gap, and it is not difficult to rinse the water from the bottle mouth.
In the hot charging process, after filling the lock cover, a long spray cooling chamber is passed to cool the product temperature below the dew point and continue to rinse the bottle mouth.

Dew point
Also known as the Dew point temperature, meteorology is the temperature at which the gaseous water contained in the air is saturated and condensed into liquid water at a fixed pressure.
The way of spray cooling is to use a lot of nozzles like showers, from top to bottom, all-round, no dead angles sprayed on the bottle. Do not think that from the top to the bottom, water can not enter the gap between the bottle cap and the bottle head. Therefore, the spray water also plays a role in rinsing the bottle mouth during the cooling process.
Sterile filling Because there is no such cooling spray, the bottle mouth must be rinsed after filling, this gap is essential.
Will there be a cleaning agent flushing into the bottle when rinsing the bottle?
After filling, the bottle is used to make the water for the beverage. It is the RO water that is purer than the pure water. Do not put the cleaning agent. Don't worry too much about the water splashing into the bottle. The existing technology can already make the bottle wash without splashing water into the bottle.

Another effect of these gaps is that the gas inside the bottle is quickly leaked through the gap during the opening process. Otherwise, at the last moment of unscrewing, the residual gas pressure will make the bottle cap like a cannonball. Launched.
Therefore, carbonated beverages and some dairy beverages that are prone to swell and produce gas must also use such a bottle mouth. As far as I know, at least two kinds of beverages have occurred in the case where the consumer opens the swelled product and removes the bottle cap.

