Is there any way to break a white glue joint?
Michael Dresdner: Heat. White glue (and most woodworking glues, for that matter) soften when enough heat is applied. Using steam helps, in part because the water holds heat better than air, and helps get it to the spot where it is needed. Depending on the type of joint, there are various ways to effectively deliver the heat and moisture. Vinegar also helps speed the process, but the most important element is still heat.
