One-Page Learn · The Halachos at a glance
כֵּלִים
Vessels 12-14
Sefer Taharah · Why breaking a vessel clears its record and melting it down brings everything back, how a clay vessel is defiled through the air it encloses and never through its outer wall, and the one thing that can shield what is lowered into a defiled space
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Points of contact needed to defile an earthenware container, which is reached through its inner space and never through its outer surface
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Walls of a clay vessel set one inside the next, where the tallest rim alone decides how far the impure air reaches
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Months after which olive dregs from impure liquids count as old and leave an oven pure, unless liquid is known to still emerge
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Olive: a hole that size ends a container's power to shield anything lowered inside an earthenware vessel
Ch 12Breaking, melting, and the part that does the work
- Breaking clears the record. Vessels of wood, leather and bone that were impure become pure when they break, and anything built from the pieces is treated as a vessel that never contracted impurity, susceptible only from the hour it was fashioned. (12:1)
- Melting brings it back. A broken metal vessel is pure, but melted down and recast it returns to its former impurity by Rabbinic decree, lest a man defile a vessel in the morning, recast it by evening and conclude that immersion too works the same day without waiting for nightfall; sprinkling before the melting does not join with sprinkling after. (12:1, 12:2, 12:3)
- The working part rules the whole. A hatchet takes its status from its blade and not from its blunt side, and a pitcher from its base and not from its mouth, because the status of the whole is set by the portion with which the task is performed; mixed iron goes by majority, and equal amounts are impure. (12:4, 12:6, 12:8)
- Glass goes by purpose, and by the hand. Glass impurity is chiefly Rabbinic, so recast glass does not return to it; a small bottle whose mouth broke off stays a vessel because one pours from it, a large bottle and a perfume flask become pure because the jagged rim would injure hand or finger, a pane that holds liquid is pure because it was never made to hold, and a ladle that tips on the table is impure because holding is what it is for. (12:10, 12:11, 12:17, 12:18)
RememberA vessel is not its material. It is the part that does the work and the purpose it was made for.
Ch 13Defiled through the air, and the rim that draws the room
- Air, not skin. An earthenware container is defiled only from its inner space, or by being moved by a zav, while every other vessel is defiled by contact and not by its air, so what defiles the one leaves the other pure; it defiles food and liquid held in its air untouched. (13:1, 13:2)
- Vessels inside stay pure, their liquids do not. Containers standing inside an impure clay vessel are unaffected, but liquids within them are defiled by the surrounding air and then defile the containers holding them, as though the small vessel said that the one which defiled you did not defile me, but you defiled me; impure liquid touching the outside defiles the outside, and only where the vessel has an inner space at all. (13:3, 13:4)
- The impurity itself has to arrive. An inverted clay vessel covering impurity on the ground is a tent and is impure, yet inverted over a pit holding the impurity it stays pure; a carcass in the earth below an oven is assumed to have fallen in alive, a needle there is assumed to predate the oven, the same needle in the swept ash makes it impure, and a visible object below is judged by whether ordinary dough would touch it while baking. (13:5, 13:6, 13:7, 13:9)
- The tallest wall decides the room. With three walls one inside the next, the highest one alone sets how far the impure air reaches, nested frying pans follow their rims, and bowls set into a clay tabletop or compartments of a wooden spice box stay separate unless a raised border makes them one space, with compartments nailed in joined for impurity and for sprinkling, wedged in joined for impurity only, and easily removed joined for neither. (13:11, 13:12, 13:13, 13:14)
RememberNothing has to touch a clay vessel to defile it, and nothing that touches it can. The only question is what got inside the rim.
Ch 14What shields inside a defiled space
- A seal works in one direction. Whatever shields as a sealed covering in a house made impure by a corpse shields in the air of a clay vessel, and whatever fails there fails here; sealed food lowered into an impure oven stays pure, but a sealed pot holding a carcass defiles the oven it is lowered into, because a seal holds impurity out and never holds it in. (14:1, 14:2)
- Swallowed is held, concealed is not. A rooster that swallowed a carcass and fell into an oven leaves it pure and defiles it if the rooster dies there, while impure liquid in a man's mouth or in the folds of his body defiles the vessel he leans into, and an impure ring inside a brick or needle inside a block of wood defiles it though terumah touching that wood would stay pure. (14:3, 14:4, 14:5)
- What will come out is already out. A sponge soaked with impure liquid and dry on the surface defiles what it falls into, dry shards wait until the oven is heated, severe liquids such as the blood of a nidah defile before the fire is lit where their emergence is possible and the owner minds it, and olive dregs used as fuel defile when new and even at three years where liquid is known to still emerge. (14:6)
- Only a receptacle standing higher. A basket lowered into a barrel with its rim above the barrel's rim leaves it pure, since Scripture said into its inner space and not into the inner space of a vessel within it, but one hole the size of an olive or wide enough for liquid to seep in ends that protection, straw stuffed into an opening does not make a container, and a plain hide hung into the air shields nothing, for only a vessel with a true receptacle can shield. (14:8, 14:9, 14:11, 14:13)
- Disqualified, and still able to hold. A flask or stone container broken open wide enough for a pomegranate to pass has left the category of vessels, and still saves what is inside it, provided its opening stands above the outer edge of the earthenware vessel it was lowered into. (14:12)
RememberA lid is a favor, not a wall. What shields you inside a defiled space is having an inside of your own that stands higher than the space around it.