Prewetts coarse oatmeal is made from carefully selected quality oats the oat kernel or groat is the inner part of the oat grain once the inedible husk is removed and it is this along with the important bran layers that go into making prewetts oatmeals which are high in natural fibre prewetts coarse oatmeal is made from carefully selected quality oats the oat kernel or groat is the inner part of the oat grain once the inedible husk is removed and it is this along with the importa