- a muslin bag used to strain off the juice from the fruit in making jelly (the preserve)
Examples from the Web for jelly bag
Then transfer them to a jelly-bag, and squeeze out the juice.
Then put them into a jelly-bag, and squeeze out all the juice.
The quince pulp that remains in the jelly-bag can be made into marmalade.
Let it pass through the jelly-bag again—when cool, turn it into glasses.
One of the ladies dropped the jelly-bag, the other shrieked out, Oh!Johnny Ludlow. First Series
Mrs. Henry Wood