An air fryer at 350°F for about 3 minutes, or a regular oven at the same temperature for around 7 minutes, gets Cheddar Bay Biscuits closest to fresh: a light crust outside, soft and cheesy inside. A straight microwave is the fastest option but also the one most likely to leave them dense or a little rubbery if you don't take a few extra steps.
The biscuit's texture is exactly what makes it easy to ruin on reheat. A cheddar biscuit brushed with garlic butter has more moisture sitting near the surface than a plain dinner roll, and dry heat methods handle that moisture very differently than a microwave does.
Why these biscuits dry out so easily on reheat
Cheddar Bay Biscuits are built from a soft, buttermilk-based dough studded with cheddar, then brushed with a garlic butter topping right after baking. That garlic butter is a big part of what makes them taste fresh, and it's also the first thing to disappear during storage and reheating, soaking into the biscuit and evaporating rather than sitting on the surface the way it does right out of the oven.
Once a biscuit has cooled and been stored, some of its original moisture is already gone. Reheating without accounting for that just accelerates further moisture loss, which is why a biscuit reheated carelessly often comes out tougher and drier than it started, rather than simply "warm again."
Air fryer: the closest to fresh
An air fryer set to 350°F, run for about 3 minutes, is generally the best result for a reheated Cheddar Bay Biscuit. The circulating hot air recrisps the outside slightly while warming the inside through, which mimics the contrast the biscuit had straight out of the oven better than either a microwave or a standard oven manages on its own.
Preheating the air fryer for a couple of minutes before adding the biscuits helps, since starting from a fully heated basket gets more even results than one still ramping up to temperature. Biscuits should go in a single layer, not stacked, so hot air reaches all sides.
Oven or toaster oven: close second, no air fryer required
A regular oven or toaster oven at 350°F for roughly 7 minutes is the next best option, and it's the more accessible one if an air fryer isn't available. Wrapping biscuits loosely in foil before they go in, and adding a few drops of water inside the foil packet, helps trap steam that would otherwise escape as dry oven heat pulls moisture out.
Unwrapping the foil for the last minute or two, if a slightly firmer top is preferred, is a reasonable adjustment, but skip that step if the biscuits already feel a little dry going in.
Microwave: fastest, but needs a few extra steps
A microwave reheats a Cheddar Bay Biscuit in under a minute, which makes it the obvious choice when time matters more than texture. The tradeoff is that microwaves heat unevenly and tend to make bread-based foods chewy or rubbery if left in too long or run at full power.
Wrapping the biscuit in a slightly damp paper towel before microwaving helps retain moisture that would otherwise cook off. Running the microwave at reduced power, roughly 50%, in short intervals of 15 to 20 seconds rather than one long burst, gives a more even result and makes it easier to stop before the biscuit overcooks. Checking after each interval is worth the extra few seconds it takes.
Reheating from the fridge versus from frozen
Cheddar Bay Biscuits stored in an airtight container generally hold up in the refrigerator for a few days before the texture starts to noticeably decline. Past that point, freezing preserves them better than continuing to store them cold, since refrigeration temperatures actually accelerate the staling process in baked goods more than freezing does.
Reheating from frozen works with any of the methods above, it just takes longer, since the center needs more time to catch up to the outside. Thawing biscuits in the refrigerator overnight before reheating gives the most even result, since it avoids the outside overcooking while the center is still cold. If time is short, reheating directly from frozen is still workable, just add a couple of extra minutes at the same temperature and check the center before serving.
What the cheese does during reheating
Cheddar reacts to reheating differently than the dough around it, which is part of why a reheated biscuit can feel uneven in texture even when the bread itself came out fine. Cheese that's been fully melted once, as it is during the original baking, tends to firm up as it cools and can turn slightly greasy or separate a little when reheated too quickly on high heat, rather than melting back into the dough the way it did the first time.
Gentler, slower reheating, whether that's a moderate oven temperature or a lower-power microwave setting, gives the cheese time to soften evenly rather than overheating in the seconds it takes the dough around it to warm through. This is one more reason a quick blast on high heat, in any method, tends to produce a worse result than the same total time spread across a slightly lower temperature.
Bringing the garlic butter back
Since a lot of the original flavor comes from the garlic butter brushed on right after baking, brushing on a small amount of fresh melted butter, ideally mixed with a pinch of garlic powder, right after reheating helps close the gap between reheated and fresh. This isn't strictly necessary, but it's a small step that noticeably improves the result, especially for the oven and air fryer methods where the original topping has had time to soak in rather than sit on the surface.
Storing biscuits before you even get to reheating
How a biscuit is stored between baking and reheating matters almost as much as the reheating method itself. Biscuits left out uncovered lose moisture to the air steadily, so even a same-day reheat can come out drier than expected if they sat exposed on a counter for a few hours first.
An airtight container or a resealable bag, kept at room temperature for same-day use or refrigerated for anything longer, slows that moisture loss considerably. Letting biscuits cool most of the way before sealing them up is worth doing too, since sealing them while still warm traps steam inside the container, which can make the biscuits soggy on the bottom rather than simply staying moist throughout.
Reheating a whole batch versus a single biscuit
Reheating one biscuit and reheating a dozen at once aren't quite the same problem. A single biscuit in an air fryer or toaster oven heats through quickly and evenly, since there's nothing blocking hot air from reaching it on every side. A full tray or basket of biscuits reheated together needs a bit more attention: biscuits touching each other block airflow between them, and pieces in the center of a crowded batch will lag behind the ones on the outer edge.
Spacing biscuits out with a little room between each one, even if it means running two smaller batches instead of one large one, gives a far more even result across the whole group. This matters more for a full dozen ordered for a family meal than for reheating just one or two leftovers, where crowding isn't really a factor to begin with.
Why fresh-baked biscuits are hard to fully replicate on reheat
Part of why reheated biscuits, even handled carefully, don't taste quite identical to fresh ones comes down to what happens the moment they leave the oven the first time. Fresh Cheddar Bay Biscuits are brushed with garlic butter while still hot enough to absorb it into the surface, and the outside has a specific just-baked texture, slightly crisp giving way immediately to soft, that starts to soften and even out within an hour or two of sitting.
Reheating brings a biscuit's temperature back up and can restore a good amount of that contrast, especially with a dry-heat method like an air fryer or oven, but it's working with a structure that's already changed somewhat since baking. This isn't a reason to skip reheating carefully, it's more a reason to keep expectations realistic: a well-reheated biscuit gets close to fresh, generally close enough that the difference isn't noticeable in context with the rest of a meal, but a side-by-side comparison with one straight out of the oven will still show a small gap.
If you're ordering biscuits to go
Both the Half Dozen Cheddar Bay Biscuits and One Dozen Cheddar Bay Biscuits are real standalone add-on options for takeout orders, on top of the two biscuits that already come with most entrees. Ordering a larger batch is common enough for takeout and family meals that reheating leftovers well is worth knowing, rather than reheating the first batch flat and writing off the rest of the order as best eaten same-day.
The short version: reach for the air fryer or oven first, add a little moisture back in as you reheat, and treat the microwave as the fast option rather than the best one. A biscuit reheated with a bit of care holds up close to fresh; one reheated dry and on high power usually doesn't.