How to Remove Labels from Glass
Pick off as much of the label as you can, fill a pot 3/4 of the way with water, and carefully put your glass jars into the pot with the burner on high. Sprinkle in some baking soda or a squeeze of liquid dish soap and swish it around a bit. Let the jars simmer until the labels peel off on their own, or use tongs to encourage the labels to come off. Take each jar out and let them cool on a dish towel. If they still have traces of the label or a sticky residue on the glass, rub those parts with baking soda, wash them, and dry again.