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Review title: Not very useful
Product review: The oven liner instructions warn that the oven liner should not be used directly on the heat element. After using the liner for one week a hole was burned through it without contacting the element. The liner is also not supposed to be used above 550 degrees or folded. I have only used it in toasting mode. However, it arrived folded in a small box. Reardless, it seems like the material ought to be heat resistant.---Fortunately, it was relatively inexpensive & I guess you get what you pay for!
