This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases. If you click a link and make a purchase, I may receive a small commission at no extra cost to you.
Heating up frozen bagels is easy, quick, and the best way to bring them back to life.
You can heat up frozen bagels directly from the freezer, and they’ll taste almost as good as the day you bought them.
Whether you’re craving a toasted bagel for breakfast or a chewy base for a sandwich, knowing how to heat up frozen bagels properly makes all the difference.
If you’ve ever wondered how to heat up frozen bagels without turning them into rocks, you’re in the right place.
In this post, we’ll walk through the best methods for how to heat up frozen bagels, the ideal temperatures for heating frozen bagels, and common mistakes to skip.
Let’s get started.
How To Heat Up Frozen Bagels: The Core Methods
The short answer is that you can heat up frozen bagels in a toaster, oven, air fryer, or microwave, and each method gives a slightly different texture.
When you heat up frozen bagels in a toaster, you get that crispy outer shell and a soft, steamy inside.
If you prefer a crustier bagel, the oven is your best friend, but it takes a little longer.
The air fryer is quickly becoming a fan favorite because it heats frozen bagels evenly and fast.
And yes, you can microwave frozen bagels, but it’s not the best choice if you want them crunchy.
Let’s break down each way to heat up frozen bagels so you can pick the one that fits your morning routine.
1. Toaster Method For Frozen Bagels
The toaster is the most common appliance for how to heat up frozen bagels, and it works wonders.
Simply take your frozen bagel out of the freezer and slice it in half if it isn’t already sliced.
Pop both halves into the toaster, cut-side up, and set it to a medium-high setting.
You may need to toast frozen bagels twice if the first cycle leaves them still cold in the center.
The key is to watch them closely because frozen bagels can go from golden to burnt in a hurry.
Once they’re nicely browned, pull them out and let them rest for a minute, as the inside will continue to soften.
This is the fastest way to heat up frozen bagels that still gives you that satisfying crunch.
2. Oven Method For Heating Frozen Bagels
If you’re heating up frozen bagels for a crowd or want a bakery-style result, the oven is the way to go.
Preheat your oven to 350°F (175°C) while you take the frozen bagels out.
Place the bagels on a baking sheet, either whole or sliced, and put them in the oven for about 8 to 10 minutes.
For sliced frozen bagels, turn them cut-side up and check after 5 minutes to see if they’re done.
The oven method for heating frozen bagels gives you a firmer crust and a chewier bite than other options.
Just remember not to leave them in too long, or they’ll dry out and become hard.
3. Air Fryer For Frozen Bagels
Using an air fryer is the trendy and efficient way to heat up frozen bagels.
Set your air fryer to 300°F (150°C) and place the frozen bagel halves inside the basket with the cut side facing up.
Cook them for about 3 to 4 minutes, flipping or shaking the basket halfway through if needed.
The air fryer heats frozen bagels quickly and gives them a golden exterior without the uneven spots a toaster might leave.
You can also add a little butter on top before heating frozen bagels in the air fryer for a richer taste.
This method is perfect when you’re making just one or two bagels and want them ready in minutes.
4. Microwave Safety Net For Frozen Bagels
While the microwave isn’t ideal, you can still heat up frozen bagels in it if you’re in a real rush.
Wrap your frozen bagel in a damp paper towel and microwave it for 30 seconds to 1 minute.
The moisture from the towel prevents the bagel from becoming tough, but you’ll lose any crispiness.
If you only know how to heat up frozen bagels in the microwave, that’s okay, but plan to toast them after for better texture.
Microwaving frozen bagels is best for softening them up before you finish them in a toaster or skillet.
Why Heating Frozen Bagels This Way Works Better
When you heat up frozen bagels using these methods, you’re essentially re-steaming the crumb while re-crisping the crust.
The moisture inside the frozen bagel turns to steam as it heats, which is why the center becomes soft and fluffy again.
At the same time, dry heat from the toaster, oven, or air fryer works on the outside to create that chewy, golden top.
That’s why heating up frozen bagels fresh from the freezer beats thawing them first, as thawing lets all that moisture escape.
So, if you want the best results, always start with frozen bagels and apply heat directly.
Tip: Don’t Thaw Frozen Bagels Before Heating
One of the biggest mistakes people make is letting frozen bagels sit out to thaw before heating them.
When you thaw frozen bagels, the condensation makes them soggy, and then they toast unevenly.
Instead, go straight from the freezer to the heat source, and you’ll lock in the freshness.
Heating frozen bagels while they’re still icy cold ensures the inside steams perfectly.
Tip: Slice Frozen Bagels Before Freezing
If you plan to freeze bagels at home, always slice them before you put them in the freezer.
That way, when you want to heat up frozen bagels, you can pull out just one half and toast it without wrestling with a rock-hard whole bagel.
Pre-sliced frozen bagels also heat more evenly, as the heat can reach the inside faster.
This small prep step makes the whole experience of heating frozen bagels much smoother.
How Long To Heat Up Frozen Bagels At Different Settings
Timing is everything when you’re learning how to heat up frozen bagels, and here are some solid guidelines.
In a toaster, frozen bagels typically take 2 to 4 minutes for a medium setting, depending on thickness.
In an oven at 350°F, heating frozen bagels takes about 8 to 10 minutes, and you can flip them halfway for even browning.
In an air fryer, frozen bagels are ready in just 3 to 5 minutes, with no preheating needed.
In a microwave, heating frozen bagels takes 30 to 60 seconds, but again, you’ll want to toast them after for any crunch.
No matter which way you heat up frozen bagels, always check the inside to make sure it’s warm all the way through.
What Temperature To Heat Frozen Bagels In The Oven
The best temperature to heat frozen bagels in the oven is 350°F (175°C).
This temperature is low enough to avoid burning the outside while still being hot enough to warm the center.
If you’re heating frozen bagels straight from the freezer, you don’t need to adjust the time, just pop them in.
Some people prefer 325°F if they want a softer bagel, but 350°F is the sweet spot for most.
Can You Reheat Frozen Bagels More Than Once?
Technically, you can reheat frozen bagels multiple times, but each round makes them drier.
It’s best to heat up frozen bagels only as many as you plan to eat in one sitting.
If you have leftover heated bagels, don’t refreeze them, as that ruins the texture completely.
So, for the best experience, learn how to heat up frozen bagels in small batches.
So, How Do You Heat Up Frozen Bagels?
You heat up frozen bagels by using direct heat from a toaster, oven, air fryer, or even a microwave for emergencies.
The toaster and air fryer are the quickest, while the oven gives you the most bakery-like result.
No matter which method you choose for heating frozen bagels, just remember to skip thawing and apply heat right away.
We hope this guide has answered your question about how to heat up frozen bagels so you can enjoy them any time.