Hi Lisa! You'll want to make sure that your specific Dutch oven is suitable for baking in a preheated oven. While it is true that thermal shock can happen with certain materials (glass, clays, etc.) when those extreme temperature differences are combined (directly from freezer to preheated oven for example) many of the Dutch ovens on the market today are strong enough to handle those differences. It's always best to check with the manufacturer before using one of these techniques just to make sure. Happy Baking!

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