The Breville Smart Oven Air Fryer Pro (BOV900BSS) has a usable temperature range of 80°F to 480°F. That's a wider range than most countertop ovens at this price, and the practical implication is that the Pro genuinely covers everything from gentle dough proofing to broiling — without needing a separate appliance.
The low end (80°F to 120°F). The bottom of the range is dedicated to the Proof and Dehydrate functions. Proof typically holds the cavity at around 80°F to 100°F, which is the ideal window for letting bread dough rise. Dehydrate runs slightly hotter, between 105°F and 165°F, and is used for jerky, fruit leather, dried herbs, and crispy kale chips. Most full-size home ovens cannot hold temperatures this low without cycling on and off, so the Pro fills a real gap.
Slow cook (200°F to 300°F). The Slow Cook preset has two settings: Low (around 200°F) and High (around 300°F). These are the temperatures you'd expect from a traditional slow cooker, and they hold steady for up to 12 hours.
Baking and roasting (300°F to 425°F). This is where most everyday cooking happens. Bake, Roast, Cookies, and Reheat all live in this band. The Pro's six quartz heating elements and
The Breville Smart Oven Air Fryer Pro is generally easy to clean, but it isn't self-cleaning, and a few habits make a real difference in how much time you spend wiping it down. Here's what the cleaning experience actually looks like day to day.
The interior. The interior cavity is non-stick coated, which means most food residue and grease wipe up with a damp cloth and a little dish soap once the oven has cooled. There's no dedicated self-clean cycle (Breville does not recommend running one even at high heat), so cleaning is manual. For baked-on residue, a paste of baking soda and water left for a few minutes before wiping handles most cases without abrasives. Do not use steel wool or harsh scrubbing pads — they will damage the non-stick coating and the interior light cover.
The crumb tray. A removable crumb tray sits at the very bottom of the oven and slides out from the front. This is the single most important part to clean regularly, because crumbs that accumulate on the tray will eventually scorch and produce smoke during high-temperature functions like Pizza or Air Fry. Pull the tray out after every few uses, dump the crumbs, and wipe it down. It is dishwasher-safe.
Yes — the Breville Smart Oven Air Fryer Pro (BOV900BSS) has a dedicated Slow Cook function, and it's one of the standout features that separates the Pro from the smaller Smart Oven Air Fryer.
The Slow Cook setting on the Pro offers two temperature presets, Low and High, similar to a traditional slow cooker. Low runs at approximately 200°F and is intended for dishes you want to cook for 8 to 12 hours, like pulled pork, brisket, or beans. High runs at approximately 300°F for shorter cooks of 4 to 6 hours, suited to stews, chilis, and pot roasts. The maximum continuous slow cook time is 12 hours, which covers an overnight or full-workday cook without needing to babysit it.
In practice, the Slow Cook function works best when you use the included enamel roasting pan or another oven-safe Dutch-oven-style vessel. Because the heat in a Smart Oven comes from convection elements rather than a heated ceramic crock, you'll want to cover the pan with foil or a fitted lid to retain moisture. Without a cover, braising liquids reduce too quickly and the meat can dry out before it tenderizes. With a cover, the results are very close to what you'd get from a stovetop Dutch oven in a regular oven,
The Breville Smart Oven Air Fryer (BOV860) and the Smart Oven Air Fryer Pro (BOV900BSS) look similar in photos, but the Pro is meaningfully bigger and meaningfully more capable. If you're trying to choose between them, the differences fall into four categories: size, cooking functions, hardware, and price.
Interior capacity. The Pro has a 1 cubic foot interior; the non-Pro is closer to 0.8 cubic feet. The Pro fits 9 slices of toast, a 14-pound turkey, and a 13-inch pizza. The non-Pro fits 6 slices of toast, a 12-pound turkey, and a 12-inch pizza. If you cook for more than two people, that extra capacity is the single biggest reason to step up.
Cooking functions. The Pro has 13 preset functions: Toast, Bagel, Bake, Roast, Broil, Pizza, Cookies, Reheat, Warm, Slow Cook, Air Fry, Dehydrate, and Proof. The non-Pro has 13 listed functions on newer revisions but historically shipped with 11; the practical difference is that the Pro's Slow Cook can run a full 12 hours and the Pro adds a dedicated Proof setting for bread dough.
Heating hardware. Both ovens use Breville's Element IQ system, which controls the heating elements independently to direct heat where the food needs
The Breville Smart Oven Air Fryer Pro (model BOV900BSS) has a 1 cubic foot interior, which makes it one of the largest countertop ovens Breville sells. To put that into terms you can actually picture in your kitchen: it can fit nine slices of bread on the wire rack at once, a full 14-pound turkey, or a 13-inch round pizza without folding the edges or wedging it in at an angle.
Externally, the oven measures roughly 17.2 inches deep, 21.5 inches wide, and 12.7 inches tall. That's noticeably larger than the standard Smart Oven Air Fryer (the non-Pro), so before you buy it's worth measuring the depth of your countertop and the height of any cabinets above. Breville recommends at least 4 inches of clearance above and 4 inches behind for ventilation, which is more than most people initially budget for.
Inside, the cooking cavity is wide enough to accommodate the included 13-by-13-inch enamel roasting pan and the air fry basket without you having to rotate them halfway through. Two oven racks fit simultaneously when you slide them into the upper and lower rack positions, so you can roast vegetables on one rack while a sheet pan of chicken finishes on the other. The interior light makes
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