This is a very interesting talk about soft matzah given by Rabbi dr. Ari Zivotofsky las year. The talk is at
https://www.torahinmotion.org/podcast/cracking-the-history-of-soft-matzah
Cracking the History of Soft Matzah | Torah In Motion<https://www.torahinmotion.org/podcast/cracking-the-history-of-soft-matzah>
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The source material for this talk is at
https://www.torahinmotion.org/sites/default/files/podcast/matzah_thick_thin_sources.pdf
To whet your appetite about this talk, see the second source about finding moldy bread on Pesach in the above pdf file.
YL
Matzah: Thin and Hard vs. Thick and Soft Ari Zivotofsky<https://www.torahinmotion.org/sites/default/files/podcast/matzah_thick_thin_sources.pdf>
1 Matzah: Thin and Hard vs. Thick and Soft Ari Zivotofsky (biblical mitzvah to eat matzah on the first night of Pesach – what is it?) ש ד ח ל ם י ר ש ע ו ד ח א ה ם ו י ד ע ת צ מ ו ל כ א ת ב ר ע ב ש ד ח ל ם ו י ר ש ע ה ע ב ר א ב ן ש א בר
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