WHAT REMOVES TUM’A
Minimum Amount of Water To Remove Tum’a
The minimum amount of water to remove tum’a (ritual impurity) is 3.3 fl. oz. (99 ml, or 1 revi’it) total, for both hands.
NOTE: By starting with at least one revi’it per hand when washing, we avoid problems of transferring tum’a to other people or utensils. If you start with only one revi’it and pour enough to cover each hand from that single revi’it, you will remove the tum’a from your hands, but the water that remains on your hands will still be tamei. If you then touch a washing cup, the tamei water will remain on the cup and be transferred to the person who touches it next. It is recommended to use at least one revi’it per hand to avoid such problems.
Tum’a and Snow
Snow removes tum’a but requires 480 se’ah of snow. This is easily achieved by plunging your hands into a field or yard full of snow!
WHAT DOES NOT REMOVE TUM’A
Tum’a and Moist Towelette
A moist towelette (baby wipe, alcohol wipes, etc.) does not remove tum’a.
Tum’a and Dirt, Ashes, Sand
“Washing” hands with dirt, ashes, or sand does not remove tum’a.
HOW TO WASH HANDS
Tum’a and Drying Hands before Handwashing
To wash hands from tum’a or all other purposes, you do not need to dry your hands first–except before washing for bread, and then ONLY if the person who washed hands before you:
- Did not use a revi’it of water (per hand) to wash his/her hands, AND
- Only poured once on each hand.
In sum, you almost never need to dry your hands before washing them!
However, if the person before you had tum’a on his or her hands and poured only once, the tum’a will be transferred from his/her hands to the cup.
Tum’a and From What To Pour
When washing your hands using the One-Time Method, in all cases except when washing for bread, here is what to use:
- Best: Cup that holds at least a revi’it of water.
- Next Best: Wash hands from a spigot within 12” of the ground, turning the spigot off and on between hands.
- Third Choice: If the spigot is more than 12” above the ground, simply hold your hands under a regular faucet in the flow of water so that your hands get wet all over. No need to turn the water on and off.
NOTE: This is a b’di’avad case.
- Fourth Choice: If there is no water, say whatever blessings you need to say anyway (for example, asher yatzar) rather than not saying the blessing at all. You will still have the tum’a on your hands (but you should rub your hands on cloth of clothing first).
NOTE: This does NOT apply to washing before eating bread or to any cases where you must wash using the Three-Times Method. Removing tum’a in these cases requires a cup.
NOTE: If you need to wash your hands after using the toilet, there is no need to go 18 minutes to find the water, (unlike the requirement for washing for bread).
Minimum Amount of Hand Coverage
When washing to remove tum’a, the ideal is to pour water over your hand up to your wrist; the minimum is to pour up to the knuckles adjacent to the palms of your hands.
EXCEPTIONS On Yom Kippur and Tish’a B’Av, wash only up to your knuckles (but if you accidentally pour water further up on your hand, it is not a problem).
Tum’a and Which Hand To Wash First
To remove tum’a from hands, it is preferable to wash the right hand first.
NOTE: If you washed the left first, it is OK and you do not need to rewash the left hand.
Tum’a and Pouring Backhanded
To wash hands from tum’a, there is no problem with pouring water backhanded.
Tum’a and Hot Water
You may wash your hands with hot water for any ritual purpose except for mayim achronim.
Tum’a and Where To Wash
You may wash your hands inside a bathroom for any purpose, even before eating bread.
NOTE: You may not say any blessings while inside the bathroom.
Copyright 2015 Richard B. Aiken. Halacha L’Maaseh appears courtesy of www.practicalhalacha.comVisit their website for more information.