Origins in Torah Sources: Netilat Yadayim, the ritual washing of hands, has deep roots in Jewish tradition and is considered a significant mitzvah (commandment). Its origins can be traced back to various Torah sources. One of the earliest references can be found in the Book of Exodus (Exodus 30:18-21), where it is prescribed for the priests before they approach the altar in the Tabernacle or Temple. This practice ensured that the priests approached their sacred duties in a state of ritual purity.
While the mitzvah now is often associated with eating bread, which will be covered soon, washing hands i a ritual way with a blessing afterwards is required after waking up, after using the bathroom, after touching a generally-clothed area (like the skin of one’s leg) and other sources of ritual impurity. It is one of the few instances when a blessing is said after a mitzvah act, because one should only say brachas in a state of cleanliness.
Rabbinic Decrees in Halacha: Over time, the practice of Netilat Yadayim expanded beyond the priesthood and specific ritual circumstances as mentioned. The rabbis in the Talmudic period codified the practice, and it became an integral part of daily Jewish life. The Mishnah, a compilation of Jewish oral law, discusses the proper procedure for Netilat Yadayim, emphasizing its importance before eating bread (Berakhot 6:1).
One of the key elements in rabbinic decrees related to Netilat Yadayim is the intention to maintain ritual purity. The Sages stressed the need to cleanse the hands not only physically but also spiritually. Therefore, it is perfectly reasonable to wash one’s hands with a bar of soap, and then next perform netilat yadayim. This concept is reinforced in the Talmud (Berakhot 53b), where the rabbis discuss the spiritual impurities that can accumulate on one’s hands during sleep, even though one is not usually becoming dirty while asleep.
Mayim Achronim: Mayim Achronim (“after-water”) is a related practice that involves washing one’s hands after a meal, specifically before reciting the Birkat Hamazon (Grace After Meals). The rationale behind Mayim Achronim is the potential impurities that can be transferred to one’s hands during a meal, such as salt and other food residues. To maintain proper respect for the sacred act of reciting blessings, particularly as Birkat Hamazon is a direct Torah commandment, Jewish tradition prescribes washing the hands after eating. That said, some communities do weigh this equally with the other instances of handwashing.


Two Handles on Netilat Yadayim Cups: The design of Netilat Yadayim cups with two handles is a distinctive feature of this ritual. This design is rooted in Jewish law and custom, with practical and symbolic significance.
- Practical Considerations: The use of a two-handled cup allows for the water to be poured over each hand separately. This ensures thorough and complete washing of both hands, as required by Jewish law. A single-handled cup might make it challenging to pour water over one hand without touching the other, potentially causing impurity to spread.
- Symbolic Significance: The two handles on the Netilat Yadayim cup also have symbolic meanings. They stand out as a particular mitzvah related item, and won’t be mixed up with another cup or bucket. When seeing one next to a sink, one will know exactly what this is meant for.
Netilat Yadayim is a ritual handwashing practice deeply rooted in Torah sources and developed through rabbinic decrees in Jewish law. It serves both practical and spiritual purposes, ensuring physical cleanliness and ritual purity. The use of cups with two handles has practical advantages and carries symbolic significance in Jewish tradition, reminding individuals of their commitment to maintaining purity in their daily lives.