How to Reheat Ham Slices Without Drying Them Out

What You’ll Need

Ham slices, refrigerated or frozen. Remove any packaging before heating.
A food thermometer to check the center of the slices. Color and steam are not reliable ways to confirm a safe temperature.
Water, broth, or a little unsweetened fruit juice to add moisture. Use about 1 tablespoon per serving to start; add more only if the pan or dish looks dry.
A skillet with a lid, an oven-safe dish with foil, or a microwave-safe dish with a microwave-safe cover.
Tongs or a fork for turning and serving. If you are reheating a large stack, separate the slices first so they warm evenly.

Step-by-Step

Check how the ham was stored. Reheat ham that has been kept refrigerated at 40°F or below and is still within the safe storage window. Refrigerate cooked leftovers within 2 hours of cooking or serving, or within 1 hour if the temperature is above 90°F. Use refrigerated leftovers within 3 to 4 days. If ham sat out longer, or you are unsure how it was handled, discard it rather than relying on reheating to make it safe.
Choose a method. Use a skillet for a few slices, the oven for a larger portion, or the microwave for a quick single serving. Keep slices in a single layer when possible. Thick, stacked slices heat less evenly and take longer.
Warm ham in a skillet. Put the slices in a skillet over low to medium-low heat and add about 1 tablespoon of water, broth, or juice per serving. Cover the skillet. Heat for about 1 to 2 minutes, then turn the slices and continue warming, checking frequently. Time varies with thickness and starting temperature, so use it only as a guide. Add a small splash more liquid if the pan dries out.
Warm ham in the oven. Preheat the oven to 275°F. Arrange slices in an oven-safe dish, add a little liquid, and cover tightly with foil. Heat until the center reaches 165°F, checking after about 10 minutes and then at short intervals. Thin slices may warm faster; a thick stack or cold dish may take longer. Avoid leaving the ham uncovered, since dry oven heat can make it tough.
Warm ham in the microwave. Put slices in a microwave-safe dish in a single layer or slightly overlapping arrangement. Add a teaspoon or two of liquid, cover with a microwave-safe lid or vented wrap, and heat at medium power in 30-second bursts. Turn or rearrange the slices between bursts. Microwaves heat unevenly, so check more than one spot, especially in a stack.
Check the temperature. Insert a food thermometer into the thickest part of a slice, without touching the dish. For leftovers, the center must reach 165°F. Check additional slices if they vary in thickness or have heated unevenly. If any spot is below 165°F, continue heating and check again.
Serve promptly. Once the ham reaches 165°F, serve it right away. If you are holding it for a meal, keep it at 140°F or hotter and check with a thermometer. Return uneaten ham to the refrigerator within 2 hours, or within 1 hour when it is above 90°F. Reheat only the amount you plan to eat when practical, because repeated heating can dry it out.

Common Mistakes

Using high heat: A hot pan or oven can brown the outside before the middle warms, and thin slices can quickly turn dry or rubbery. Keep the heat moderate or low and check early.
Skipping the cover or liquid: Ham can lose moisture as it heats. A small amount of liquid and a lid, foil, or microwave-safe cover create a more humid environment.
Trusting appearance: Ham can look hot while the center remains below the safe temperature. Use a food thermometer and aim for 165°F when reheating leftovers.
Heating a thick pile as one piece: The outside may overcook while the middle stays cool. Separate slices and turn or rearrange them as they warm.
Leaving leftovers out too long: Reheating does not make food safe after improper storage. Follow the 2-hour limit, or the 1-hour limit above 90°F, and discard ham left out longer.
Assuming every ham needs the same treatment: Slices may be fully cooked, or they may come from a product that requires cooking. Follow the package directions for the product; the 165°F target here applies to reheating cooked leftovers.

Tips

Let a cold serving sit out only while you prepare the pan or dish. Do not leave it on the counter to warm for an extended period.
For the oven, arrange slices in one layer or use a shallow stack so heat can reach them more evenly. Cover the dish snugly to retain steam.
For microwave heating, rotate the dish if the microwave does not have a turntable. Let the covered dish stand briefly after heating, then check the temperature; standing time alone does not replace the thermometer check.
Keep glaze or sugary sauce from scorching in a skillet. Add it near the end of heating, or warm it separately and spoon it over the ham.
Thaw frozen ham in the refrigerator rather than on the counter. You can reheat frozen slices directly if needed, but allow more time, separate them as they loosen, and verify 165°F throughout.
Use shallow, covered containers for leftover storage so the ham cools and chills efficiently. Refrigerate promptly and label the container with the storage date if that helps you track the 3-to-4-day window.

Troubleshooting

The ham is still below 165°F

Continue heating gently, covered, in short intervals. Rearrange or turn slices and take another thermometer reading in the thickest area. Avoid simply turning up the heat, which can dry the outside before the center warms.

The slices are dry or tough

Add a small splash of water or broth, cover the pan or dish, and warm briefly at lower heat. If already overcooked, serve with sauce or gravy to improve texture, but remember that this does not reverse overcooking.

The edges are hot but the center is cool

Separate the slices and spread them out. For a microwave, lower the power and rotate or rearrange the dish between short bursts. For a skillet or oven, keep the cover on and give the center time to heat evenly.

The ham is steaming but the thermometer reading is low

Trust the thermometer, not steam or touch. Check that the probe is placed in the meat and is not touching the dish; then continue heating and check again.

You do not know how long it was left out

If you cannot establish that the ham was refrigerated promptly and kept cold, the safer choice is to discard it. Heating cannot reliably correct unsafe storage.

Frequently Asked Questions

What temperature should reheated ham reach?

Reheated leftovers should reach 165°F in the center. Check with a food thermometer, especially when slices are thick, stacked, or heated in a microwave.

Can I reheat ham slices in the microwave?

Yes. Add a little liquid, cover the dish, use medium power, and heat in short bursts while turning or rearranging the slices. Confirm that the center reaches 165°F.

How long does it take to reheat ham slices?

It depends on slice thickness, quantity, appliance, and whether the ham starts cold or frozen. Use suggested times only as a starting point and rely on a thermometer for the 165°F safety check.

Can I reheat ham more than once?

It is better to reheat only what you plan to eat. Repeated heating can reduce quality, and each serving still needs to reach 165°F when reheated; keep the remaining ham refrigerated between servings.

How long can cooked ham stay in the refrigerator?

Keep cooked ham leftovers refrigerated at 40°F or below and use them within 3 to 4 days. Refrigerate within 2 hours, or within 1 hour when the temperature is above 90°F.

Can I reheat ham slices from frozen?

Yes, though they will take longer and may heat unevenly. Separate the slices as soon as possible, use a covered method with a little liquid, and check the center reaches 165°F.

Further reading: USDA FoodSafety.gov. Details can change, so check the official page for anything that matters to you. Spotted a mistake? Tell us. How we write an answer.