One who carries his produce up to the roof because of maggots, and dew came down upon it, it does not come under the law of ‘if water be put’; But if he intended for this to happen, it does come under the law of ‘if water be put’. If a deaf-mute, or a person not of sound senses, or a minor carried it up, although he expected that dew should come down upon it, it does not come under the law of ‘if water be put’, because with these the act alone counts, but not the intention.

One who carries up to the roof bundles [of vegetables] or cakes of figs or garlic so as to keep them fresh, it does not come under the law of ‘if water be put’. All bundles [of vegetables] in the market places are unclean. Rabbi Judah declares them clean if they are fresh. Rabbi Meir said: Why did they declare them unclean? Only because of liquid from the mouth. All coarse and fine flours of the market places are unclean. Crushed wheat, groats, and pearl-barley are unclean everywhere.

All eggs are presumed to be clean except those of sellers of liquids. But if they sold with them dry produce, they are clean. All fish are presumed unclean. Rabbi Judah says: pieces of aylatit and Egyptian fish which arrives in a basket, and Spanish tunny, these may be presumed clean. All kinds of brine may be presumed unclean. Concerning all these an am ha-aretz may be trusted when he declares them to be clean, except in the case of small fish, since they are usually stored with any am ha-aretz. Rabbi Eliezer ben Jacob says: clean brine into which water fell in any quantity must be deemed unclean.

There are seven liquids: dew, water, wine, oil, blood, milk and bees’ honey. Hornets’ honey does not cause susceptibility to uncleanness and may be eaten.

Derivatives of water are: the liquids that come from the eye, from the ear, from the nose and from the mouth, and urine, whether of adults or of children, whether [its flow is] conscious or unconscious. Derivatives of blood are: blood from the slaughtering of cattle and wild animals and birds that are clean, and blood from bloodletting for drinking. Whey is like milk, And the sap of olives is deemed like oil, since it is never free from oil, the words of Rabbi Shimon. Rabbi Meir says: even though it contains no oil. The blood of a sheretz is like its flesh, it causes uncleanness but does not cause susceptibility to uncleanness, and there is nothing else like it.

The following cause uncleanness and also susceptibility [to uncleanness]; The flow of a zav, his spittle, his semen and his urine; A quarter-log of blood from a corpse, and the blood of a menstruant. Rabbi Eliezer says: semen does not cause susceptibility. R. Elazar ben Azariah says: the blood of a menstruant does not cause susceptibility. Rabbi Shimon says: the blood of a corpse does not cause susceptibility, and if it fell on a gourd, he can scrape it off, and it remains clean.

The following cause neither uncleanness nor susceptibility to uncleanness: Sweat, rotten secretion, excrement, blood issuing with any of these, liquid [issuing from a child born in the] eight month. Rabbi Yose says: except its blood. [The discharge from the bowels of] one who drinks the water of Tiberias even though it comes out clean. Blood from the slaughtering of cattle and wild animals and birds that are unclean, and blood from bloodletting for healing. Rabbi Eliezer declares these unclean. Rabbi Shimon ben Elazar says: the milk of a male is clean.

A woman's milk renders unclean whether [its flow is] desired or is not desired, but the milk of cattle renders unclean only if [its flow is] desired. Rabbi Akiva said: there is a kal vehomer argument here: if a woman's milk, which is specifically for infants, can render unclean whether [its flow is] desired or is not desired, all the more should the milk of cattle, which is for infants and adults, should render unclean both when [its flow is] desired and when it is not desired. They said to him: No; a woman's milk renders unclean when [its flow is] not desired, because the blood issuing from her wound is unclean; but how could the milk of cattle render unclean when [its flow is] not desired, seeing that the blood issuing from its wound is clean? He said to them: I am stricter in the case of milk than in the case of blood, for if one milks for healing, [the milk] is unclean, whereas if one lets blood for healing, [the blood] is clean. They said to him: let baskets of olives and grapes prove it; for liquids flowing from them are unclean only when [the flow is] desired, but when [the flow is] not desired they are clean. He said to them: No; if you say [thus] of baskets of olives and grapes which are at first a solid food and at the end become a liquid, could you say [the same] of milk which remains a liquid from beginning to end? Thus far was the argument. Rabbi Shimon said: from here on in we used to argue before him: let rain water prove it, for it remains a liquid from beginning to end, and renders unclean only when [its flow is] desired. But he said to us: No; if you say [thus] of rain water, it is because most of it is intended not for human usage but for the soil and for trees, whereas most milk is intended for human usage.