During our visit to Israel we got a glimpse into this tradition.
Mat 15:2 Why do thy disciples transgress the tradition of the elders? for they wash not their hands when they eat bread.
Mat 15:20 These are the things which defile a man: but to eat with unwashen hands defileth not a man.
Mat 15:18 But those things which proceed out of the mouth come forth from the heart; and they defile the man.
Mat 15:19 For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies:
Rainbow Trout 