Shulchan Arukh Orach Chayim · Siman 460

English

THE LAWS OF THE MATZOT MITZVAH; SEVEN SECTIONS. One should not knead or bake the Matzot Mitzvah via a gentile, a deafmute, an imbecile, or a child.

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The R"ASH would personally deliberate on the Matzot Mitzah and oversee the production, inspire those working and assisting them in the flattening [of the dough]. It is similarly fitting for everyone to consign and devote themselves to the Mitzvah.

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The who kneads after the beginning of the time when leaven is forbidden should say at the time of kneading [regarding] all crumbs which fall at the time of kneading and flattening and dough which clings to the vessels "I am annulling these." This is in order that when they are found, they will have been annulled prior to leavening.

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One should not make shaped cakes of dough, which is shaping the bread like a species of animal or bird. Rather, all that one does with a comb so that it will not inflate or poking holes in the Matzot is permitted. Nevertheless, ideally one should expedite doing these things so as not to delay them [Matzot]. REMA: there are those who make the Matzot wafer-thin and not a thick loaf like other breads, for wafers do not leaven as quickly.

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One should not make on Pesach handbreadth thick loaves.

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One should not be lenient regarding our strict precedent to not make 'Pandeesh' or 'Pladonish' [for Pesach].

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One should not place whole eggs in Matzah to be baked to together with them.