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Flahavans has been grinding olives in Kilma Thomas, the company's home mill for more than 200 years. Since the end of the 17th century, Kyle Mac Thomas has an oats factory that supplies electricity from the nearby Mahon River, which once provided electricity to four other oat plants. In those days, the mill was used to contract the oats for local farm growers and oat growers. Here, the peasant's oats were crushed and the crushed oats were returned to him. He was charged for this service. At this time, oatmeal is heavier than Flahawan's "flaky" oatmeal that they know today. In 1935, Flahavans decided to expand the factory and build an oat processing plant. Oat flakes produce finer flakes, which is faster cooking. By 1959, Flahawan completed the current factory construction.