formed by the decomposition of volcanic ash deposited millions. of years ago in an ancient inland seaway. It is widely used as a. drilling mud for oil and natural gas wells; other uses include cat. litter, cosmetics, a binding agent in animal feed, and a found-. ry-sand bond in iron and steel foundries.
Best Answer: No, there is no need to cover it. Ham is already cooked, so you just have to heat it thru. Cook it in the oven at 250 for about an hour. It will not brown at that temperature. You don't have to cover the ham especially if you use a glaze, but if you want you could also use a deep enough pan for the ham and flip a cookie sheet over the top to act as a lid. NO it is not required at all and it will get noice and crusty just as ppl have said keep the temp low and dont overcook it.
Remove ham from packaging materials. Insert ham into cooking bag. Place ham face down onto roasting pan or baking dish. Warm ham in oven for 10 to 12 minutes per pound. Remove ham from oven when heated throughout. Take ham out of cooking bag and let it rest on counter for 10 minutes. Slice ham and serve. Cut warmed ham into slices.