Mustard Moisturizer for Pork

By Adam Perry Lang from his book Serious Barbeque.

1/4 C  Prepared yellow mustard
1/4 C  Water
1 T   Worchestershire Sauce
1 T   Apple Cider vinegar

Used first time 6/18/16 on Loin and Spare Ribs.  Loins had a nice bark from this added on top of My Rub.  Could not say it made a difference from straight yellow Mustard.