Matzo must be ground from one of the five grains specified in Jewish law for Passover matzo: wheat, barley, spelt, rye or oat. Per Ashkenazic tradition, matzo made with wine, fruit juice, onion, garlic, etc., is not acceptable for use at any time during the Passover festival except by the elderly or unwell. Matzo dough is quickly mixed and rolled out without an autolyse step as used for leavened breads. Most forms are pricked with a fork or a similar tool to keep the finished product from puffing up, and the resulting flat piece of dough is cooked at high temperature
Yehoshua Matza activities, and helping to hide weapons, sometimes in synagogues behind the arks where Torah scrolls were kept. During the 1948 Arab-Israeli War, Jerusalem was the scene of intense fighting, and Matza participated in an operation that enabled Lehi fighters to blast their way into the Old City. The operation entailed planting a bomb outside the New Gate of the Old City walls. However, the plan was aborted when the bomb failed to detonate. Following the end of the war in 1949, Matza resumed his schooling, which he had suspended during his underground activities. Upon completing his high school education, Matza