Dough becomes chametz after 18 minutes of inactivity. Do periods of inactivity combine. After dough is worked on it is heated and becomes chametz "right away "

Not kneaing matzah Dough in the sun. On a cloudy day not even in the shade. Dont transport matzah to oven, water or flour under sun. Don't knead dough in front of the oven.

Minhag to make the matzah for the seder on erev pesach after hazot, the same time that they brought the korban pesach.

Taking Challah when making matzah on yom tov. Kohen Katan can eat challah of Chutz Laaretz

Taking challah from matzah when they got mixed up.

How to take challah when making matzah. How to combine two Small doughs. Combining multiple doughs In a bowl.

Maximum size of dough for matzah is 43.2 eggs. How to measure. If he used more it's ok bediavad. Is one allowed to measure on yom tov

Non mayim shelanu that mixed with mayim shelanu. Matzah should not have salt added. Matzah made with sesame is kosher. Can it be used for the seder. Matzah with pepper is asur.

Water from a cistern for matzah. No hot water . Bediavad if used wayer that was hot or not mayim shelanu

Better to use river water than well water, unless they are from melting snow. Custom to draw water in new clay jugs . Dont ise vessels that help juices.