Analysis of information sources in references of the Wikipedia article "Handwashing in Judaism" in English language version.
The Shulkhan Arukh (Orach Chayim 4:18, 158-165) lists occasions when hands should be washed; upon arising each morning, after urination and defecation, after taking off one's shoes, or touching any part of the body customarily covered, after visiting a cemetery, after undressing, before and after meals, after marital relations, and after coming into contact with lice.
...Likewise, 'anything that is dipped in a liquid needs handwashing'. [So is it written] in the chapter ʻErev Pesaḥ. But be apprised that since they have mentioned the language of 'dipping', it is understood that there is no requirement to wash one's hands unless he actually dips [foodstuffs into a liquid], or else the liquid that clings to the food is dripping, so that when he comes to take up the foodstuff it leads to it being dipped. However, if there is dampness upon the food, even if there had been dampness enough to cause wetness to be imparted elsewhere, it does not warrant a handwashing, as this is not called '[a thing] dipped in a liquid'.
