Whether general acceptance of impurity by liquids is rabbinic or biblical: Pesachim 16a
Whether they are considered impure in cases of doubt: Nedarim 19a
Whether a touch of one area of a liquid imparts impurity to the entire item: Niddah 17a
Considering all liquids to be impure, because they may be from a person with genital discharge: Niddah 7b
Liquids do not require hechsher [special preparation] in order to become impure: Pesachim 18b
Liquids inside a fruit/berry are [not] connected to the skin, to become Impure and be included in the amount necessary for impurity: Pesachim 33b, 34b
Berries whose outside is Impure, crushed in amounts of less than an Egg [Beitzah] Size to avoid making the juice Impure: Pesachim 33b, 34b
If the olives or grapes were of exactly an Egg [Beitzah] Size when they were crushed, releasing juice but reducing the Amount: Shabbat 144b-145a
Differentiating in the Berry cases between Offerings and non-Holy Items: Pesachim 34b
Liquids which are disgusting ["Saruach"] are not eligible for Impurity: Pesachim 18a, 20a
Liquids join the First Descendant Level of Impurity automatically when they become Impure: Pesachim 14a
Above is only when touched by anything which would invalidate Terumah for Consumption, except a Person awaiting Sunset for Purification, and is Rabbinic: Pesachim 14b; Niddah 7b
Receiving Impurity from Foods: Pesachim 18b
Making Others Impure
Liquids can make Foods impure [to be a First Descendant Level of Impurity] Biblically or Rabbinically: Pesachim 14a-b, 15b-16a, 17b-18b, 19b
Above case, splitting between Liquids which became Impure from a Crawling Creature or from a Vessel: Pesachim 15b-16a
Whether they make other items impure, in cases of doubt: Nedarim 19a
Whether liquids can make Vessels impure, Rabbinically or Biblically: Pesachim 16a, 17b-18b, 19b, 20a
Above case, splitting between Liquids which became Impure from a Crawling Creature or from a Vessel: Pesachim 18b
Liquids don't make Vessels impure in the Temple: Pesachim 19b
If Liquids touch the Outside or Inside of a Vessel which has both an outside & an inside: Pesachim 17b; Niddah 7b
Liquids can't make other Liquids impure: Pesachim 18b
Liquids make Hands impure, Rabbinically: Pesachim 19b
Liquids can't make Hands impure in the Temple: Pesachim 19a-b
Liquids make Holy Books Impure, Rabbinically: Pesachim 19b
Special Classes of Liquids
Snow: Niddah 17a
Water and Blood from Offerings were not in the Rabbinically Ordained impurities, to prevent loss of Offerings: Pesachim 16a-17b; Nedarim 19a
Purification of Water and Blood from Offerings, as a Law Spoken to Moshe at Mount Sinai: Pesachim 17b
Blood which is squeezed from the blood vessel does not prepare items for impurity; it must be the blood with which the Life departs: Pesachim 16b; Niddah 19b
Water from Offerings accepting Impurity if there is a Reviit-Amount of it in a puddle on the ground, constituting a Biblical Minimal Ritual Bath: Pesachim 17a-b
Ability of Wine and Oil from Offerings to receive Impurity and to Transfer it to Others: Pesachim 16b-17a
For Wine and Oil from Offerings which came into contact with Impurity while inside the Temple [and so remained Pure], and then were brought outside, to be able to be Make Others Impure: Pesachim 17a
Blood from a Corpse of an Animal: Shabbat 77a
Unwanted dew which is found in the early morning on the unused parts of bean plants, which are used as insulation to encase food: Eruvin 87b-88a
