4 Simple Ways to Make Dried Orange Slices - wikiHow
Dec 09, 2019 Set your oven at 65 C (149 F), or as low as possible. If your oven does not permit a setting this low, put it as low as it will go. At 65 C (149 F), it will usually take about 3.5-4.5 hours to dry the orange slices. At 95 C (203 F), it will typically take 2.5-3.5 hours.
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