THIS SECTION IS FOR NEWS AND INTERESTING STORIES RELATED TO FOOD, NUTRITION AND FOOD PROCESSING. THEY ARE NOT NECESSARILY RELATED TO KOSHER BUT MAY BE OF INTEREST TO THE KOSHER CONSUMER, MANUFACTURER OR MASHGIACH.
An old article but still relevant from May 3, 2019 from the Matzav.com:
"As is well known, there is a minhag to make shlissel challah for the Shabbos after Pesach. Shlissel challahs are best known as a segulah for parnassah, although there are other several reasons for baking a challah with a key in it. However, some have raised health concerns regarding this minhag. Keys have been found to leave behind unsafe amounts of lead, leading some to suggest that the practice of placing keys in challahs in making shlissel challah may present a danger."
"Brass is a soft metal, so lead is added to give keys more strength. Some keys have a silver-colored nickel coating over top the brass, but this wears away. Sucking on car keys is dangerous. Even handling car keys can leave lead on one’s hands. Not all keys are brass; some are aluminum and are lighter weight."
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