1. The cork of the red wine can be stuffed by a machine, which can be either manual or automatic. The principle is: there is a squeeze block in the machine, which squeezes the cork thin, and then presses the cork into the bottle mouth with external force.

2. Cut the head of the cork a little, then insert the head of the cork into the mouth of the bottle, and then push the other end of the cork against the wall to squeeze most of the cork into the mouth of the bottle.

3. Do not use brute force, but slowly rotate the edge of the cork against the mouth of the bottle and plug it into the mouth of the bottle with a little pressure.