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How to Reheat a Roast Dinner (Without Ruining It)#
Look, we’ve all been there. You’ve cooked an absolutely magnificent roast, eaten until you physically couldn’t manage another bite, and now there’s a fridge full of leftovers staring back at you. The question is: how do you reheat it without it turning into a sad, dry, flavourless version of the meal that was genuinely brilliant the day before?
The good news is that reheating a roast dinner properly isn’t hard. You just need to know what works for each component. I’ve broken it all down below, from the meats to the trimmings, including how to freeze everything, how long it’ll keep in the fridge, and yes, air fryer instructions too, because if you have one and you’re not using it for leftovers, you’re genuinely missing out.
Reheating Beef#
In the Oven#
The oven is your best friend for beef. It keeps things juicy and you’re far less likely to accidentally turn it into leather. Preheat to 160°C (320°F), lay your beef slices in a baking dish, add a few tablespoons of beef broth or water, and cover tightly with foil. Give it 15–20 minutes and check it’s warmed all the way through before serving.
In the Microwave#
If you’re in a hurry, it can be done. Place your beef slices on a microwave-safe plate, cover with a damp paper towel (this is non-negotiable, it keeps the moisture in), and heat on medium power for 1–2 minutes. Check halfway through and don’t walk away and forget about it.
In the Air Fryer#
Preheat your air fryer to 160°C. Place the beef slices in the basket without stacking them and heat for 3–4 minutes. It won’t be quite as juicy as the oven method, so I’d add a splash of broth to a small dish on the side and dip as you go. Works a treat.
How Long Does It Keep in the Fridge?#
Cooked beef will keep well in the fridge for 3–4 days. Store it in an airtight container with a little of its cooking juices to stop it drying out.
Can You Freeze It?#
Absolutely. Slice it first, then layer between pieces of baking paper before placing in a freezer-safe container or bag. It’ll keep for up to 3 months. Defrost in the fridge overnight before reheating.
Reheating Lamb#
In the Oven#
Lamb dries out faster than most other meats, so low and slow is the way to go. Preheat to 160°C (320°F), place your slices in a baking dish with a good splash of lamb gravy or stock, cover with foil, and heat for 20–25 minutes. The gravy is really doing the heavy lifting here, so don’t skip it.
In the Microwave#
Place the lamb on a microwave-safe plate, cover with a damp paper towel, and heat on medium for 1–2 minutes. Check the temperature halfway through because overcooked reheated lamb is really quite grim.
In the Air Fryer#
Preheat to 160°C. Lamb reheats reasonably well in the air fryer if you’re going for a slightly crispier result. Think leftover lamb that ends up almost like a crispy edge piece. 3–4 minutes should do it. Keep an eye on it.
How Long Does It Keep in the Fridge?#
3–4 days in an airtight container. Store with a spoonful of its cooking juices or gravy to keep it from going dry.
Can You Freeze It?#
Yes. Freeze in portions with a little of the cooking liquid if possible. It’ll keep for up to 3 months. Thaw overnight in the fridge before reheating.
Reheating Pork#
In the Oven#
Preheat your oven to 160°C (320°F). Place pork slices in a baking dish, add a little pork gravy or broth, cover with foil, and heat for 15–20 minutes. Use a thermometer if you have one, as you’re looking for an internal temp of 75°C (165°F) to be safe.
In the Microwave#
Microwave-safe plate, damp paper towel on top, medium power for 1–2 minutes. Rearrange the slices halfway through to make sure everything heats evenly, as pork can have hot spots.
In the Air Fryer#
This is genuinely a good method for pork, especially if you’re working with thicker slices or you had crackling (which, let’s be honest, you should). Preheat to 180°C and heat pork slices for 4–5 minutes. The outside gets a little colour back, which is lovely.
How Long Does It Keep in the Fridge?#
3–4 days, stored in an airtight container. Pop a little gravy or cooking liquid over the top before sealing.
Can You Freeze It?#
Yes, up to 3 months. Freeze in portions and include some cooking liquid if you can. Defrost overnight in the fridge.
Reheating Chicken#
In the Oven#
Chicken is the one that people most often get wrong when reheating, because it goes rubbery so fast. Preheat to 180°C (350°F), slightly higher than other meats because chicken needs to reach 75°C internally to be safe. Place pieces in a baking dish, add a few tablespoons of broth or water, cover with foil, and heat for 20–25 minutes.
In the Microwave#
Place on a microwave-safe plate, cover with a damp paper towel, and heat on medium for 1–2 minutes. Check for even heating because chicken in particular can be boiling in one spot and cold in another.
In the Air Fryer#
Preheat to 180°C. Place chicken pieces in the basket and heat for 4–5 minutes. This is particularly brilliant for skin-on pieces because the skin gets its crispness back in a way the oven just can’t replicate. Check the internal temp has hit 75°C before eating.
How Long Does It Keep in the Fridge?#
Cooked chicken keeps for 3–4 days in an airtight container in the fridge. Don’t push it past that.
Can You Freeze It?#
Yes. Remove meat from the bone first if possible because it freezes and thaws more evenly that way. Up to 3 months in the freezer, and always defrost in the fridge overnight rather than on the bench.
Reheating Turkey#
In the Oven#
Turkey has a tendency to dry out even on the first round, so be gentle with it the second time. Preheat to 160°C (320°F). Place slices in a baking dish with turkey gravy or broth, cover tightly with foil, and heat for 20–25 minutes.
In the Microwave#
Place turkey slices on a microwave-safe plate, cover with a damp paper towel, and heat on medium for 1–2 minutes. Check that it’s heated evenly throughout before serving.
In the Air Fryer#
Preheat to 160°C. Turkey slices can go 3–4 minutes, but any longer and you’ll be heading into cardboard territory. A quick spritz of oil over the top before cooking helps keep the surface from drying out.
How Long Does It Keep in the Fridge?#
3–4 days. Keep it in an airtight container with some of its cooking juices or gravy poured over. This makes a real difference.
Can You Freeze It?#
Yes, and it freezes really well. Up to 3 months. Slice it before freezing and store with some liquid to keep it moist. Thaw in the fridge overnight before reheating.
Reheating Ham#
In the Oven#
Preheat to 160°C (320°F). Lay the ham slices in a baking dish, add a little water or leftover glaze, cover with foil, and heat for 15–20 minutes. Ham is usually pre-cooked, so you’re really just warming it through. Keep an eye on it so it doesn’t dry out.
In the Microwave#
Place on a microwave-safe plate, cover with a damp paper towel, and heat on medium for 1–2 minutes. Because it’s already cooked, it heats up quickly, so don’t overdo it.
In the Air Fryer#
This is actually a great option for ham, especially glazed ham. Preheat to 180°C, pop the slices in for 2–3 minutes, and if you’ve got a little extra glaze handy, brush it on before they go in. The edges go slightly caramelised and it’s brilliant.
How Long Does It Keep in the Fridge?#
3–5 days in an airtight container. Ham keeps a little longer than other meats because of its curing process.
Can You Freeze It?#
Yes. Up to 2 months, as it can get a bit watery after that. Freeze in portions with some of the glaze if you have it. Thaw in the fridge overnight.
Reheating Fish#
In the Oven#
Fish needs the gentlest touch of all. Preheat your oven to 150°C (300°F), which is lower than everything else. Place the fish in a baking dish, add a splash of water or broth, cover with foil, and heat for 10–15 minutes depending on how thick the piece is. Check it carefully because fish goes from perfectly reheated to ruined very quickly.
In the Microwave#
Place on a microwave-safe plate, cover with a damp paper towel, and heat on medium for 1–2 minutes. Check the temperature at the halfway mark. Be warned: the smell in your microwave afterwards is going to linger. Just putting that out there.
In the Air Fryer#
Preheat to 160°C and heat for 3–4 minutes. This works particularly well for fish that had a crunchy coating first time around because it brings a bit of that texture back. Plain fish fillets are fine too; just don’t overcook them.
How Long Does It Keep in the Fridge?#
Cooked fish should be eaten within 2–3 days. Keep it in an airtight container and try to eat it sooner rather than later.
Can You Freeze It?#
You can, but honestly fish is one of those things where the quality drops noticeably after freezing and reheating. If you do freeze it, consume within 1–2 months and thaw slowly in the fridge overnight. It’s really best to just eat it fresh within the next couple of days.
Reheating Roast Potatoes#
In the Oven#
The oven is good for roast potatoes, but not the best option. Preheat to 200°C (400°F), place them on a baking tray, drizzle with a little olive oil if they look dry, and heat for 10–15 minutes until crispy and hot.
In the Microwave#
I won’t pretend this is a good idea. They go soggy and sad. But if you’re desperate: microwave-safe plate, damp paper towel, high power for 1–2 minutes. They won’t be crispy. Manage your expectations.
In the Air Fryer#
This is genuinely the best way to reheat roast potatoes and I will die on that hill. The air fryer brings back the crispy exterior without drying out the fluffy inside. Preheat to 200°C, don’t overcrowd the basket (do it in batches if you have to), and cook for 5–8 minutes, shaking halfway through. A light spray of olive oil first if they’re looking a little sorry for themselves. You’re welcome.
How Long Do They Keep in the Fridge?#
3–5 days in an airtight container. They firm up in the fridge, which is actually fine because the reheating process does its job regardless.
Can You Freeze Them?#
Yes! Spread them out on a baking tray to freeze individually first, then transfer to a freezer bag. They’ll keep for up to 3 months. You can reheat straight from frozen in the air fryer or oven, just add a few extra minutes.
My Favourite Roast Potato Recipes #
Reheating Yorkshire Puddings#
In the Oven#
Yorkshire puddings are one of those things that reheat brilliantly in the oven. Preheat to 180°C (350°F), place them on a baking tray, and heat for 3–5 minutes. They come out crispy and airy, almost like they were just made. Almost.
In the Microwave#
They’ll go soft and a bit sad in the microwave, but it’ll work in a pinch. High power for 20–30 seconds. Just don’t expect miracles.
In the Air Fryer#
The air fryer is an excellent option for Yorkshires. Preheat to 180°C and heat for 2–3 minutes. They come out crispy and puffed up beautifully, genuinely almost as good as fresh.
How Long Do They Keep in the Fridge?#
2–3 days in an airtight container. They tend to deflate once cold, but reheating brings them back to life.
Can You Freeze Them?#
Absolutely, and this is one of the best things to freeze from a roast. Let them cool completely, then freeze in a single layer before transferring to a bag. Up to 3 months. Reheat from frozen in the oven or air fryer at 180°C for 4–5 minutes straight from the freezer.
Reheating Roast Vegetables#
In the Oven#
Preheat to 180°C (350°F). Spread the vegetables on a baking tray, drizzle with a little olive oil if they seem dry, and roast for 10–15 minutes until hot and slightly caramelised again.
In the Microwave#
Place in a microwave-safe bowl, cover with a lid or damp paper towel, and heat on medium for 1–2 minutes. Stir halfway through. They’ll be soft rather than crispy, but they’ll taste fine.
In the Air Fryer#
Genuinely great in the air fryer. Preheat to 190°C, add your vegetables to the basket in a single layer if possible, and heat for 4–6 minutes. They come out with lovely caramelised edges and are honestly sometimes better than the first time.
How Long Do They Keep in the Fridge?#
3–4 days in an airtight container. Different vegetables will hold up differently. Root vegetables like parsnip and carrot do well while softer things like courgette less so.
Can You Freeze Them?#
Most roast vegetables freeze reasonably well. Freeze in a single layer first, then transfer to a bag. Up to 3 months. They’ll be softer after freezing, but if you’re reheating in the air fryer you can get some texture back.
Reheating Stuffing#
In the Oven#
Preheat to 180°C (350°F). Place stuffing in an oven-safe dish, cover with foil, and heat for 15–20 minutes. For the last 5 minutes, remove the foil to get a slightly crispy top. Very worth it.
In the Microwave#
Place in a microwave-safe dish, cover with a damp paper towel or lid, and heat on medium for 1–2 minutes. Stir halfway through for even heating.
In the Air Fryer#
Preheat to 180°C. Put the stuffing in the basket (use a small baking tin that fits if it’s crumbly) and heat for 4–5 minutes. The outside gets a lovely crust while the inside stays moist. This is my personal favourite method.
How Long Does It Keep in the Fridge?#
3–4 days in an airtight container.
Can You Freeze It?#
Yes, stuffing freezes really well. Portion it up before freezing and it’ll keep for up to 3 months. Defrost overnight in the fridge and reheat using any of the methods above.
Reheating Gravy#
On the Stovetop#
Pour the gravy into a small saucepan and heat over medium-low, stirring every so often until it’s hot. If it’s thickened up overnight (and it will have), add a splash of water or stock and stir it back to the right consistency.
In the Microwave#
Pour into a microwave-safe bowl, cover, and heat on medium for 1–2 minutes. Stir halfway through because gravy heats unevenly if you leave it alone.
In the Air Fryer#
Gravy isn’t really an air fryer situation. Use the stovetop or microwave for this one.
How Long Does It Keep in the Fridge?#
3–4 days in an airtight container. Gravy keeps really well and actually often tastes even better the next day once all the flavours have had time to meld.
Can You Freeze It?#
Yes, and gravy is one of the best things to freeze. Pour into ice cube trays first so you can defrost just as much as you need. Once frozen, transfer to a freezer bag. Up to 3 months. Defrost in the fridge or heat straight from frozen on the stovetop.
Quick Tips for Reheating a Roast Dinner#
- Use Low to Medium Heat: Reheat your roast at low to medium temperatures to retain moisture and flavour. High heat can cause the roast to dry out or become overcooked.
- Cover with Foil: When reheating a roast in the oven, covering it with foil helps to keep the moisture in, preventing the roast from drying out.
- Check for Doneness: Always use a food thermometer to check if your roast has reached a safe internal temperature, especially when reheating meat. Reheat poulty to at least 75°C (165°F), and other meats should reach around 63°C (145°F) or higher.
- Use Broth or Water: When reheating roast meat, adding a little broth or water can help keep the roast moist and prevent it from drying out.
- Crisp with High Heat: For roast potatoes and other crispy elements, reheat them in the oven with a brief blast of high heat to restore their crunch.
- Avoid Overheating: Be careful not to overheat roasts like fish and poultry, as they can become tough. Keeping a close watch will help maintain the roast’s texture.
- Microwave Tips: If you need to reheat your roast in the microwave, cover it with a damp paper towel to retain moisture and prevent it from drying out.
- Reheat in Batches: When you have a large amount of roast leftovers, reheat in smaller batches to ensure even heating and maintain the quality of each roast item.
- Storage: Store your roast leftovers in airtight containers in the fridge and aim to reheat and consume them within 2-3 days to keep them tasting fresh and moist.
- Plan Ahead: If you anticipate leftovers, consider undercooking your roast slightly at first. This way, when you reheat it, the roast will be perfectly cooked without becoming overdone.
- Use a Thermometer: A meat thermometer is invaluable when reheating a roast. It ensures that the roast reaches the desired temperature without overcooking.
- Avoid the Microwave for Meat: Although quick, reheating roast meat in the microwave can lead to uneven heating and a rubbery texture. Opt for the oven for the best results.
- Reheat Once: Try to reheat roast leftovers only once. Repeated reheating can dry out the roast and make it tough. For larger portions, reheat smaller servings at a time for optimal flavour and texture.
My Post-Roast Rules#
Reheating a roast dinner isn’t a one-size-fits-all kind of deal, but with the right approach, you can enjoy your leftovers just as much as the first time around. Different methods work better for different dishes, depending on what you’re reheating and how you want it to taste. While the microwave is quick and easy, it’s not always the best choice if you want to keep the original flavour and texture. For example, rare roast beef does much better in the oven. The gentle heat warms it through without drying it out, keeping that delicious, tender flavour intact.
Here’s a handy tip for making your reheated roast dinner taste amazing. Don’t throw away those congealed juices at the bottom of your storage container! They might look a bit like jelly, but those solid bits are actually packed with flavour and moisture. It’s just the natural gelatin from the meat that has set in the fridge. Trust me, those juices are like liquid gold for bringing your leftovers back to life.
Add these juices to your pan when you’re reheating your meat, or use them as a base for making gravy. This simple step makes a huge difference, helping to keep the meat juicy and full of flavour, just like when it was freshly cooked. By using these tasty juices, you’ll ensure your post-roast meals are every bit as delicious and satisfying as the original dinner.
