"Then the Pharisees and some of the scribes came together to Him, having come from Jerusalem. Now when they saw some of His disciples eat bread with defiled, that is, with unwashed hands, they found fault. For the Pharisees and all the Jews do not eat unless they wash their hands in a special way, holding the tradition of the elders." (Mark 7:1-3)

Edersheim in The Life and Times of Jesus the Messiah outlines the most elaborate of Jewish washings. "Water jars were kept ready to be used before a meal. The minimum amount of water to be used was a quarter of a log, which is defined as enough to fill one and a half eggshells. The water was first poured on both hands, held with the fingers pointed upwards, and must run up the arm as far as the wrist. It must drop off from the wrist, for the water was now itself unclean, having touched the unclean hands, and, if it ran down the fingers again, it would again render them unclean. The process was repeated with the hands held in the opposite direction, with the fingers pointing down; and then finally each hand was cleansed by being rubbed with the fist of the other. A really strict Jew would do all this, not only before a meal, but also between each of the courses."

The elaberate washings of the Jews became wrong when they began to bind them as God's law. Jesus said, "...In vain they worship Me, teaching as doctrines the commandments of men." (Mark 7:7)