Does the Breville Smart Oven Air Fryer Pro have a slow cook function?

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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, just with the convenience of a countertop appliance and a programmable timer.

A few practical notes. First, the Pro is a countertop convection oven, not a traditional slow cooker, so it won't replace a Crock-Pot or Instant Pot if you're used to those exact one-pot results. Sear your meat in a skillet first, then transfer to the Smart Oven, since the Smart Oven doesn't sear well at slow-cook temperatures. Second, the Slow Cook function uses lower wattage than other functions, so it's energy-efficient compared to running a full-size oven for 8 hours. Third, you can lift the lid to add ingredients midway through, but every door opening drops the cavity temperature noticeably; aim to add everything you need at the start.

The Slow Cook on the Pro is genuinely useful, not a token spec-sheet feature. People use it most often for: overnight oats and steel-cut oatmeal, long-cooked tomato sauces, braised short ribs, pulled pork shoulder, slow-roasted whole chickens, and chili. If slow cooking is a primary use case for you, the Pro's 12-hour duration and dedicated preset are a meaningful step up over the non-Pro Smart Oven Air Fryer, where the slow-cook capability is more limited.