Eating gebroks is NOT a custom, it’s the halacha. Non-gebroks is the minhag, and it’s relatively new. Its a Chassishe minhag, apparently started by Dov Ber of Mezrevitch around 1800.
Can anyone prove that today’s razor thin matzos have kernels of unbakec flour that can rise? Has anyome seem a proven case ( not an anecdote they heard fro somebody who heard from somenody?)
