Remedy for the jelly that is too watery and does not solidify:

First, place it on the pot and heat it for a while, or mix it with boiling water;

Second, use Cover the jelly with plastic wrap and leave it in a cool place for a while;

Thirdly, if the jelly does not solidify for a long time, put the jelly in the freezer for about half an hour and take it out.