INCONSISTENT: Benzopyrene levels could vary between batches of raw soybeans, so some oil that passed the first test might exceed limits downstream, experts said By Lin Chih-yi, Lo Pi and Sam Garcia / Staff reporters, with staff writer The Ministry of Health and Welfare (MOHW) is today to convene a meeting with the nation’s four major cooking oil producers to establish a new oil management system, Minister of Health and Welfare Shih Chung-liang (石崇良) said yesterday, following criticism of the cooking oil recall issue.The Food and Drug Administration (FDA) on Tuesday last week was notified by Central Union Oil Corp that batch No. 315-1150404, manufactured in April, contained excessive levels of the carcinogen benzopyrene during internal testing, and that the batch had been distributed to thr