In the past, all Sefardic communities were lenient concerning the use on Pesach of glass utensils, which were used all year round. The minimum Hag alah they require is to soak the glass utensils for 72 hours in cold water while changing the water every 24 hours. Therefore, it cannot be koshered. Some Sefardic communities do not eat corn on Pesach. Some eat dry beans, others do not.
Pure rice is permitted.
However, some require that it be checked three times before it is used. Weeks before Pesach, the women begin to prepare the rice for Pesach. Rice has to be examined very carefully to see that there is no wheat between the rice. The rice is scrupulously checked between the kernels three times on top of a clean white tablecloth to make sure there is no wheat chef. After it has passed the rigid inspection, it is packed away in plastic bags to be kept for Pesach.