Can the food in your mouth pass the subway security machine?

Yes, they won't pry your mouth open for inspection. Even if you eat and walk, the staff won't care about you.

Metro security is only available on holidays or special festivals, and it is not always set. Mainly to prevent accidents and safeguard the personal safety of the public.

In general, large luggage items need to pass through the conveyor belt of X-ray security equipment, while handbags do not need to pass through the conveyor belt. Only the station needs to pass through the security conveyor belt. There are so many people in the subway security inspection that it is impossible for even the bag to pass through the conveyor belt.

In the subway security inspection, small items are checked by the staff with metal detectors. See if there are any prohibited items on people. Eating is generally not checked, and the subway is still relatively lax in this respect. I can't help it, because there is too much traffic.

It is normal for some office workers to pass the security check with breakfast in their mouths because they are in a hurry. Because you can't eat when you get on the subway, this is also a matter of racing against time.

I've tried it several times myself, and when it comes to holidays, the subway security checkpoint is crowded with people. Sometimes during the inspection, the staff scans the metal detector from top to bottom next to me, and I have been eating breakfast.

The security check of the subway is a little different from that of the station. If you take a sip of water in the station, all the bags need the conveyor belt of X-ray security inspection equipment, and even the charging treasure can't be brought. But the subway doesn't have that many requirements, because it's all short-distance work. If it is a long-distance guest, the station needs to be checked again.