Analysis of information sources in references of the Wikipedia article "Matzah" in English language version.
According to Jewish Law, once matzo is baked, it cannot become hametz. However, some Ashkenazim, chiefly in Hassidic communities, do not eat [wetted matzo], for fear that part of the dough was not sufficiently baked and might become hametz when coming in contact with water.
... was a little girl ... on the shelves
Maẓẓah—unleavened bread.