If you drink milk, it will enter your mouth through a straw. Then why can't you drink delicious milk when the straws are perforated?

When drinking milk through a straw, the purpose of "sucking" is to reduce the air pressure in the mouth and in the tube above the milk level, and use the difference between the external atmospheric pressure and the internal atmospheric pressure to press the milk into the mouth.

If a lot of small holes are pierced, then when inhaling, the outside air is directly sucked in, and the air pressure in the tube above the milk level cannot be changed, so naturally there is no need to use atmospheric pressure to drink milk.

Lang Jun British Hunting Team will answer your questions. I hope I can help you!