Preparation:

Preheat the Oven: Set your oven to a low temperature, around 275°F (135°C). A lower temperature is crucial for reheating slowly and retaining moisture.

Prepare the Turkey: Remove the turkey from the packaging and let it rest at room temperature for about 30 minutes. This helps it to reheat evenly.

Add Broth for Moisture: Place the turkey in a roasting pan. Pour a cup or two of chicken or turkey broth into the pan. The broth will steam during reheating, adding moisture to the turkey.

Cover with Foil: Cover the turkey tightly with aluminum foil. This traps steam and prevents the turkey from drying out.

Reheat Slowly: Place the turkey in the preheated oven. The amount of time needed will depend on the size and whether the turkey is sliced or whole. A whole turkey might take up to 2 hours, while sliced turkey could be heated through in less than an hour.

Baste for Extra Moisture (Optional): Halfway through reheating, you can baste the turkey with additional broth to add more moisture.

Check Temperature (Optional): For safety, the internal temperature of the turkey should reach 165°F (74°C). Use a meat thermometer to check.

Rest Before Serving: Once reheated, let the turkey rest for a few minutes covered. This allows the juices to redistribute.

Tips:

Avoid High Heat: High temperatures can dry out the turkey.
Keep It Covered: Keeping the turkey covered throughout the reheating process is key to retaining moisture.
Use Broth: The broth not only adds moisture but also enhances the flavor of the turkey.

By following these steps, your reheated turkey should be moist and flavorful, closely resembling its freshly roasted state.