«Shmurah matzah» — literally, «watched matzah» — refers to matzah baked from flour and water which has been carefully supervised over from the moment of harvesting and drawing to ensure that there was no chance of prohibited contact between grains and water. This video (02:17) from Chabad.org takes viewers into an authentic matzah baking factory, demonstrating how handmade shmurah matzot are prepared, from the mixing of the dough until they come out of the oven less than 18 minutes later. To learn more about the difference between regular kosher matzah and shmurah matzah, click here.