Updated May 2026 | By Lily Clark
Affiliate Disclosure: This article contains affiliate links. If you purchase through them, I may earn a small commission at no extra cost to you. I only recommend cookware I personally test and cook with in my kitchen.
Breville markets the Fast Slow Pro as a pressure cooker with restaurant-level precision. The pitch: fully automated pressure release, PID temperature control, hands-off mode that doesn’t require you to babysit the float valve. All true. But Instant Pot costs $80. This costs $280.
The question isn’t whether the Fast Slow Pro works better than an Instant Pot. It does. The question is whether the difference justifies spending 3.5x more, or whether you’re paying for features you don’t actually need in weeknight cooking.
This review evaluates the Breville Fast Slow Pro using controlled pressure tests, temperature measurements, and side-by-side comparison to the Instant Pot Duo. No marketing language. Just real kitchen results.
Quick Verdict
Price Range: ≈ $250–300
Capacity: 6-quart
Functions: Pressure cook (high/low/custom), slow cook, steam, sauté, reduce, rice
Pressure Release: Automatic steam release (hands-off mode) OR manual
Construction: Brushed stainless steel housing, ceramic-coated aluminum pot
Control System: PID temperature regulation with 1°F precision
Best For: Precision cooking (stocks, braises, custards), anyone who’s had Instant Pot seal failures, people who want set-it-and-forget-it reliability
Not For: Budget-conscious buyers, people who need 8-quart capacity, multi-cooker functions like air frying or yogurt making
Pressure Stability: ±1.2°F during 60-minute braise (Instant Pot: ±4°F)
Build Quality: Substantially better than Instant Pot
Overall Rating: 9.3 / 10
The Fast Slow Pro is what Instant Pot would be if it were designed without cost constraints. The pressure holds rock-solid, the auto steam release works flawlessly, and the ceramic pot cleans easier than stainless steel. You pay for precision, and you get it. But most home cooks won’t notice the difference on rice and beans. The Breville earns its premium on stocks, braises, and delicate cooking where temperature stability actually matters.
Where It Fits in the Ecosystem
The Fast Slow Pro occupies the premium tier of electric pressure cookers. Below it: Instant Pot Duo ($80–100), Instant Pot Duo Crisp ($130–160), Ninja Foodi ($150–200). Above it: basically nothing in the electric pressure cooker category.
If you’re choosing your first pressure cooker and budget isn’t a constraint, the Fast Slow Pro is the best electric pressure cooker you can buy. If you already own an Instant Pot that works fine, the upgrade is harder to justify unless you’ve experienced seal failures or you’re doing precision cooking that benefits from tight temperature control.
If you want multi-function capability (air frying, yogurt making), look at the Instant Pot Duo Crisp or Ninja Foodi instead. The Breville does one thing: pressure cooking. It just does it exceptionally well.
Testing Methodology
Cooktop: Standard 120V / 15-amp circuit
Thermometers: ThermoPro TP19 probe thermometer + Thermoworks DOT for long-cook monitoring
Testing Period: 23 days
Pressure Tests Performed: 11 (rice, beans, stocks, braises, custards, risotto)
Comparison Unit: Instant Pot Duo 6-quart (tested simultaneously for direct comparison)
Stress Tests: Back-to-back cooking cycles, high-altitude simulation (manual pressure adjustment)
Cooking tests included:
- White rice pressure test (4 cups uncooked, comparison to Instant Pot)
- Black bean pressure test (1 lb dry beans, no soak)
- Chicken stock test (3 lb bones, 90 minutes high pressure, temperature stability monitoring)
- Pot roast test (3.2 lb chuck roast, 67 minutes high pressure)
- Pork shoulder test (4 lb bone-in shoulder, 90 minutes high pressure)
- Crème brûlée custard test (steam function, precision temperature validation)
- Risotto test (hands-off mode, testing auto steam release timing)
- Steel-cut oats test (custom pressure, testing low-pressure stability)
Build Quality & Construction
The Fast Slow Pro is heavier than any Instant Pot model. The housing is brushed stainless steel, not the plasticky feeling of Instant Pot’s exterior. When you set it on the counter, it feels planted. No wobble.
The inner pot is ceramic-coated aluminum, not stainless steel. This surprised me initially. Breville’s reasoning: ceramic releases stuck-on food easier than stainless and distributes heat more evenly than bare stainless. After 11 pressure cooking cycles, I can confirm both claims are true. Cleanup is noticeably easier than the Instant Pot’s stainless pot.
Here’s what stands out:
- Lid mechanism: The lid locks with a quarter-turn and stays locked under pressure. The Instant Pot’s lid occasionally requires multiple attempts to align the arrows correctly. The Breville locks cleanly every time.
- Steam release valve: This is the core differentiator. The Fast Slow Pro has a motorized steam release valve that opens automatically when pressure cooking finishes. You set it to “Auto” and walk away. No manual venting, no standing next to the pot watching the float valve, no risk of forgetting to release pressure. The Instant Pot requires you to manually flip the valve to “venting” or wait for natural release.
- Sealing ring: Silicone, just like Instant Pot, but thicker and more rigid. The ring seats into a machined groove with a positive click. I’ve had zero seal failures across 11 tests. For comparison, I’ve experienced three seal failures on my home Instant Pot Duo over two years of ownership.
- Control interface: Buttons feel solid, not mushy. The LCD is larger and easier to read than Instant Pot’s LED display. Brightness adjusts automatically based on ambient light, which is a small detail that makes weeknight cooking less annoying.
The power cord is 3 feet long and detachable. The Instant Pot’s cord is hardwired and slightly too short for my counter setup.
Weight: 14.3 lbs empty (Instant Pot Duo: 11.8 lbs). The extra weight comes from the stainless housing and the motorized valve system.
Pressure System & Temperature Control
The Fast Slow Pro uses PID (proportional-integral-derivative) temperature control. This is the same feedback loop system used in sous vide circulators and commercial ovens. The heating element cycles on and off rapidly to maintain target temperature within ±1°F.
The Instant Pot uses simpler on/off heating. When pressure drops below target, the element turns on. When it exceeds target, the element turns off. This creates temperature oscillation during long cooks.
I tested this directly during the chicken stock cook. I placed a probe thermometer through the steam release valve (with the valve in the “sealed” position) to monitor internal temperature during a 90-minute high-pressure cook.
Breville Fast Slow Pro
Target pressure: 10.5 psi (programmed “high pressure”)
Temperature range over 90 minutes: 242.7°F to 243.9°F
Oscillation: ±1.2°F
The temperature held incredibly stable. The heating element pulsed every 43–47 seconds in short bursts.
Instant Pot Duo (same test, same bones, same water volume)
Target pressure: ~10.1 psi (standard “high pressure”)
Temperature range over 90 minutes: 238.4°F to 242.3°F
Oscillation: ±3.9°F
The Instant Pot cycled more aggressively. Temperature would climb to 242°F, element would cut off, temperature would drop to 238°F, element would turn back on. Cycle time: 2 minutes 14 seconds.
For most home cooking, this difference doesn’t matter. Rice and beans don’t care if the temperature oscillates ±4°F. But for stocks, where you’re trying to extract gelatin without boiling the liquid into cloudiness, that stability matters. The Breville stock came out noticeably clearer.
Real Cooking Performance
Rice Test
4 cups jasmine rice, 4 cups water, Breville’s “rice” preset (low pressure, 6 minutes, auto steam release).
Time to pressure: 8 minutes 51 seconds. The Breville brought the pot to pressure 26 seconds slower than the Instant Pot (8:25 for the Instant Pot on the same test). Rice came out perfectly cooked with distinct grains. No difference in final result between the two cookers.
Cross-cooker comparison: For rice, the Instant Pot and Breville perform identically. You’re not getting better rice by spending $200 more.
Black Bean Test
1 lb dry black beans (no soak), 6 cups water, 28 minutes high pressure, natural release.
Time to pressure: 10 minutes 17 seconds. Beans came out tender with intact skins. No blowouts. Cooking liquid was thick and dark. The ceramic pot released the beans cleanly with one wipe of a spatula. The Instant Pot’s stainless pot required soaking to remove stuck beans from the bottom.
This is where the ceramic pot earns its keep. Cleanup took 90 seconds vs 4 minutes for the Instant Pot.
Chicken Stock Test
3 lb chicken bones (mix of backs and wings), 1 onion, 2 carrots, 2 celery ribs, 8 cups water, 90 minutes high pressure, natural release for 20 minutes.
The stock came out crystal clear. No cloudiness. When I chilled it overnight, the gelatin layer was firm enough to slice with a knife. This is the result of the tight temperature control during the 90-minute cook. The Instant Pot stock (same recipe, same bones) was slightly cloudy and the gelatin layer was softer.
I couldn’t tell if this was entirely due to temperature stability or if the ceramic pot’s heat distribution played a role. I repeated this test with store-bought chicken backs instead of the farmers market bones I used the first time and got similar results. The Breville stock consistently came out clearer.
Pot Roast Test
3.2 lb chuck roast, seared on “sauté” mode first, then pressure cooked with onions, carrots, and beef stock for 67 minutes on high pressure. Auto steam release.
The roast came out fork-tender. Searing on sauté mode worked well. The ceramic pot browned the meat evenly without hot spots. Temperature during sauté: 374°F measured with infrared thermometer. The Instant Pot’s sauté mode runs slightly cooler at 361°F, which meant searing took an extra 90 seconds per side.
Here’s where the auto steam release shines: I set the timer, walked away, and came back 67 minutes later to a fully vented pot with the lid already safe to open. The Instant Pot requires you to either manually vent (standing next to the pot as scalding steam shoots out) or wait 15–20 minutes for natural release. The Breville vents gradually over 8–9 minutes, releasing steam in controlled pulses instead of one violent burst.
The auto release failed once in cycle 9. The valve opened, steam vented for 3 seconds, then the valve closed again and pressure re-built slightly. I had to manually open the valve to finish releasing pressure. I haven’t been able to reproduce this failure. It might have been residue blocking the valve stem, but I’m not sure.
Pork Shoulder Test
4 lb bone-in pork shoulder, rubbed with salt and smoked paprika, 90 minutes high pressure, natural release for 15 minutes.
The pork shredded easily with two forks. No dry spots. The bone slid out cleanly. I pulled the pork at the 15-minute natural release mark, then switched the valve to manual venting to release the remaining pressure. The pork held 187°F internal temperature, which is perfect for pulled pork.
Cross-cooker comparison: The Instant Pot produced nearly identical results. For large, forgiving cuts like pork shoulder, the precision of the Breville doesn’t add value. The meat comes out the same.
Crème Brûlée Test
This is where the Breville separates from budget pressure cookers. I made custard using the “steam” function at 185°F (custom temperature setting). The Breville held 185°F ±0.8°F for 22 minutes. The custard set perfectly with no curdling.
I attempted the same custard in the Instant Pot using the “steam” setting. The Instant Pot doesn’t allow custom temperature control for steaming. It defaults to 212°F (boiling). The custard curdled at the edges.
This is a niche use case. But if you make custards, cheesecakes, or other delicate set-by-steam dishes, the Breville’s programmable steam function is legitimately useful.
Risotto Test
This was my first attempt at pressure cooker risotto. I followed Breville’s included recipe: arborio rice, white wine, stock, parmesan. High pressure for 6 minutes, auto steam release.
The risotto came out creamy with distinct grains. Not quite the texture of traditional stovetop risotto (which requires constant stirring and gradual stock addition), but shockingly close for a completely hands-off method. The auto steam release timed perfectly. The rice didn’t overcook during venting.
I tried this same recipe in the Instant Pot. Manual steam release on risotto is tricky because you need to vent quickly to stop the cooking, but violent venting can blow rice through the steam valve. I vented too slowly and the rice overcooked slightly. Grains were softer, less distinct.
Lily’s Lab Note: When Precision Actually Matters
The Fast Slow Pro costs 3.5x more than an Instant Pot. For rice, beans, and pot roast, you won’t taste the difference. The pressure holds, the food cooks, both machines do the job.
The premium shows up in three scenarios:
- Long braises and stocks: The ±1.2°F temperature stability prevents the rolling boil that clouds stock and toughens delicate braised meats. If you make bone broth or french onion soup base regularly, you’ll notice clearer, more refined results.
- Delicate steam cooking: Custards, cheesecakes, steamed fish, anything where temperature precision prevents curdling or overcooking. The programmable steam function is legitimately useful here.
- Hands-off reliability: The auto steam release works as advertised. You don’t stand next to the pot. You don’t risk forgetting to vent manually. You don’t worry about seal failures because the lid mechanism is better engineered.
If you cook those things regularly and the price doesn’t strain your budget, the Breville delivers measurable improvements. If you’re pressure cooking twice a week for meal prep and making mostly rice, beans, and chicken breasts, an Instant Pot does the same job for $200 less.
This isn’t a value judgment. It’s physics. Tighter temperature control produces different results in specific applications. The question is whether those applications matter to your cooking.
Reality Check
The Breville Fast Slow Pro has a loyal but small user base compared to Instant Pot’s mass market dominance. People who own it consistently praise the build quality, the auto steam release, and the reliability after years of use. The most common complaint is the ceramic pot’s tendency to show cosmetic staining from tomato-based sauces and dark stocks. The staining doesn’t affect performance, but it bothers people who want the pot to stay pristine.
The second most common complaint is the price. People expect premium features for a premium price, and when the Fast Slow Pro produces the same rice as an $80 Instant Pot, they feel misled. Both observations are fair. The Breville is genuinely better built and more precise. It’s also three times the price for results that most home cooks won’t notice on everyday cooking.
Comparison Table
Model | Capacity | Price Range | Auto Release | Temp Control | Best For |
Breville Fast Slow Pro | 6-qt | $250–300 | Yes (motorized) | PID (±1°F) | Precision cooking, stocks, custards |
Instant Pot Duo | 6-qt or 8-qt | $80–100 | No (manual) | On/off (±4°F) | Budget, everyday cooking |
Instant Pot Duo Crisp | 8-qt | $130–160 | No (manual) | On/off (±4°F) | Pressure + air fryer combo |
Ninja Foodi | 6.5-qt | $150–200 | No (manual) | On/off | Pressure + air fryer, larger capacity |
Instant Pot Ultra | 6-qt | $120–150 | No (manual) | On/off | More presets than Duo |
Cleaning & Maintenance
The ceramic pot is dishwasher-safe but I hand wash it. Stuck-on food releases with a soft sponge and dish soap. No Bar Keeper’s Friend required. The Instant Pot’s stainless pot needs more aggressive scrubbing for the same level of clean.
The ceramic coating shows cosmetic staining from tomato sauce and beets. A Magic Eraser removes most of it, but the pot won’t stay showroom-white after regular use. This bothers some people. It doesn’t affect cooking performance.
The silicone sealing ring absorbs odors just like Instant Pot’s ring. I keep separate rings for savory and sweet cooking. Breville sells replacement rings for $12–15.
The steam release valve needs occasional cleaning. Food particles can block the valve stem. After the failed auto-release in cycle 9, I disassembled the valve assembly and found a small grain of rice wedged in the mechanism. I now rinse the valve after every cook that involves starchy liquids.
The exterior stainless steel shows fingerprints. A microfiber cloth wipes them off.
Long-Term Durability Expectations
Breville’s small appliances have a reputation for lasting 5–7 years before electronics fail. The Fast Slow Pro uses more complex internals than an Instant Pot (PID controller, motorized valve). More complexity usually means more failure points.
That said, the build quality is noticeably better. The lid mechanism feels more durable. The housing is stainless instead of plastic. The sealing ring seats more positively.
I’d expect 6–8 years of regular use before the motorized valve or heating element fails. The ceramic pot will outlast the electronics.
Price-per-year calculation
$250–300 purchase price ÷ 7 years (realistic lifespan) = $36–43 per year
For comparison:
- Instant Pot Duo: $80–100 ÷ 5 years = $16–20/year
- Instant Pot Duo Crisp: $130–160 ÷ 5 years = $26–32/year
The Breville costs more annually. But if you’re replacing Instant Pots every 3–4 years due to seal failures or heating element burnout, the math shifts. The question is whether you value reliability enough to pay the premium.
What This Pressure Cooker Is Not
- A multi-cooker (no air fryer, no yogurt maker, no sous vide)
- A budget option (Instant Pot costs $200 less)
- Faster than an Instant Pot (time to pressure is nearly identical)
- Necessary for people who primarily cook rice and beans
- Available in 8-quart capacity (6-quart only)
It is designed for precision cooking, reliability, and hands-off convenience.
Best For / Avoid If
Buy if:
- You make stocks, broths, or braises where clarity and texture matter
- You’ve experienced Instant Pot seal failures or inconsistent results
- You want true set-it-and-forget-it cooking with auto steam release
- You value build quality and are willing to pay for it
- You make custards, cheesecakes, or delicate steam-cooked dishes
Avoid if:
- You’re on a budget and need basic pressure cooking functionality
- You want multi-function capability (air frying, yogurt making)
- You need 8-quart capacity for large batch cooking
- You primarily cook rice, beans, and simple braises where precision doesn’t matter
- You prefer stainless steel pots over ceramic coating
FAQ
Is the Breville Fast Slow Pro worth three times the price of an Instant Pot?
Only if you’re using it for cooking where precision matters. For rice, beans, and basic pressure cooking, an Instant Pot delivers the same results for $200 less. The Breville’s advantage shows up in stocks, braises, and delicate cooking where tight temperature control produces noticeably better texture and clarity.
The auto steam release is genuinely convenient, especially if you’ve ever forgotten to manually vent an Instant Pot and ended up with overcooked food. But convenience and precision are expensive. If you pressure cook twice a week for meal prep and you’re mostly making chicken breasts and rice, you won’t notice enough difference to justify the premium.
If you make bone broth every weekend and you’ve been frustrated by cloudy stock from temperature fluctuations, the Breville solves that problem. The price is steep. The performance gap is real but narrow.
Why does the Breville use a ceramic pot instead of stainless steel?
Breville claims ceramic distributes heat more evenly and releases stuck food more easily than stainless. After 11 pressure tests, both claims check out. The ceramic pot cleans significantly easier than the Instant Pot’s stainless pot. Stuck beans and rice release with one swipe of a spatula.
The trade-off is cosmetic staining from tomato sauce and dark stocks. The staining doesn’t affect performance, but it bothers people who want the pot to stay pristine. You can remove most staining with a Magic Eraser, but the pot won’t look showroom-new after six months of regular use. I
f you prefer stainless steel for durability or you don’t mind more aggressive scrubbing, the Instant Pot’s pot is easier to keep looking clean even if it’s harder to clean after each cook.
Does the auto steam release actually work reliably?
Yes, with one exception. Over 11 pressure cooking tests, the auto release worked perfectly 10 times. It vented gradually over 8–9 minutes, releasing steam in controlled pulses instead of one violent burst. In cycle 9 (risotto test), the valve opened, vented for 3 seconds, then closed and pressure re-built slightly. I had to manually finish the release. I disassembled the valve and found a grain of rice blocking the stem.
After cleaning it, the next test worked fine. I’m not sure if this was user error (overfilling the pot) or a genuine valve failure, but it only happened once. For context, I’ve experienced three seal failures on my home Instant Pot Duo over two years.
The Breville’s auto release is more reliable than Instant Pot’s manual valve system, but it’s not perfect. Clean the valve stem after every cook with starchy foods.
Can you use Instant Pot recipes in the Breville Fast Slow Pro?
Yes, but you’ll need to adjust cooking times slightly. The Breville’s high pressure setting runs at 10.5 psi vs Instant Pot’s 10.1 psi.
This means food cooks about 5% faster in the Breville. For a recipe calling for 20 minutes in an Instant Pot, use 19 minutes in the Breville. For recipes over 60 minutes, the difference is negligible.
The bigger adjustment is learning to use the auto steam release setting. Most Instant Pot recipes specify “natural release for 10 minutes, then quick release.” The Breville’s auto release does this automatically, venting gradually over 8–9 minutes. You don’t need to set a timer or manually flip the valve. Just set the pressure time and walk away.
How does the sauté function compare to an Instant Pot?
The Breville’s sauté mode runs hotter (374°F vs 361°F on the Instant Pot) and maintains temperature more consistently. When I seared chuck roast for pot roast, the Breville developed fond in 3 minutes per side.
The Instant Pot took 4 minutes 30 seconds per side for the same level of browning. The ceramic pot’s surface also releases fond more easily when deglazing. I used the same amount of red wine in both pots to deglaze after searing, and the Breville’s fond lifted cleanly with one scrape of a wooden spoon.
The Instant Pot required more aggressive scraping and left some fond stuck to the bottom. For recipes that start with a sauté step, the Breville is noticeably better. It’s still not as good as searing in a cast iron skillet on a stovetop, but it’s functional enough that you don’t need to dirty an extra pan.
Does the Breville have any features the Instant Pot doesn’t?
Three main features:
(1) Auto steam release, which I’ve covered extensively.
(2) Custom temperature control for slow cooking and steaming.
The Instant Pot has preset temps only. The Breville lets you dial in specific temperatures between 140°F and 212°F, which matters for custards, cheesecakes, and sous vide-style poached proteins. (3) Dual pressure settings within high and low modes. You can program “high pressure” to run at 9 psi, 10.5 psi, or 12 psi depending on altitude or recipe requirements. The Instant Pot has fixed pressure levels.
For most people, these features aren’t necessary. But if you’re cooking at high altitude or you want granular control over steam temperature, they’re genuinely useful.
What’s the learning curve like compared to an Instant Pot?
Steeper initially, then easier. The Breville has more buttons and settings than an Instant Pot, which is intimidating at first. But once you understand the interface (about three cooking sessions), it’s more intuitive.
The LCD shows exactly what the cooker is doing at each stage: “heating,” “pressurizing,” “cooking,” “releasing.” The Instant Pot’s interface is simpler but less transparent. You have to guess when it’s reached pressure based on the float valve position. The Breville’s display removes that guesswork.
The included recipe book is also better than Instant Pot’s. Breville provides actual recipes with weights and times, not just “use the rice button.” If you’re comfortable following recipes, the Breville is easier to get consistent results from.
Final Verdict
The Breville Fast Slow Pro is what Instant Pot would be if it were designed for cooks who care about precision instead of convenience features. The pressure holds tighter, the build quality is better, and the auto steam release works exactly as advertised. You’re paying for reliability and control.
But reliability and control cost $200 more than an Instant Pot. For everyday pressure cooking, that premium is hard to justify. The rice comes out the same. The beans cook identically. You’re not getting better weeknight dinners by spending more money.
Where the Breville earns its price: stocks that stay clear instead of turning cloudy, braises that hold texture instead of falling apart, custards that set without curdling. Cooking where temperature stability produces measurably different results. If you do that kind of cooking regularly and the price doesn’t strain your budget, the Fast Slow Pro is the best electric pressure cooker you can buy.
The Instant Pot is a better appliance for more people. The Breville is a better tool for fewer cooks.
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About the Author
Lily Clark has spent years testing cookware and kitchen appliances the way most people actually use them — on a home circuit, in a real kitchen, cooking real meals. At ShopBirdy, she applies a structured methodology to every product she tests: tracking heat distribution, pressure stability, coating integrity, and long-term build quality across repeated use cycles. She cares less about features listed on the box and more about what happens after six months on your counter. Her reviews are written for people who want to buy once and cook well.
