The GreenPan Slow Cooker and the Ninja PossibleCooker PRO serve the same basic function but appeal to very different home cooks. GreenPan prioritizes a premium build and a PFOA- and PFAS-free ceramic non-stick surface, while Ninja focuses on all-in-one versatility and value by offering eight cooking functions in a single appliance.
Here’s everything you need to know to decide which slow cooker is the right choice for your kitchen countertop.
GreenPan Premiere 6-Quart Slow Cooker
The GreenPan Premiere Slow Cooker is a health-conscious choice that brings the brand's signature non-toxic ceramic non-stick technology to the world of slow cooking. It’s designed for those who want a simple, high-quality appliance without the potentially harmful chemicals found in some traditional non-stick coatings, wrapped in a sleek stainless steel body.
- What it is: A premium 6-quart slow cooker with a removable insert featuring GreenPan's Thermolon Volt ceramic non-stick coating.
- Key features: Easy-to-use digital controls with four modes (High, Low, Simmer, Keep Warm), a timer, and a tough coating safe for metal utensils. Includes a steam rack for added versatility. The inner pot is oven-safe.
- Price: Around $279.99
- Style: Modern and minimalist with a clean stainless steel finish that blends well with other high-end kitchen appliances.
- Materials/Construction: The cooking pot has a Thermolon™ Volt ceramic non-stick coating that is free of PFOA, PFAS, lead, and cadmium. The exterior housing is durable stainless steel.
- Pros: A market-leading non-toxic cooking surface provides peace of mind. The build quality feels substantial and durable. Its sleek, simple design is easy to use and looks great on the counter. The ceramic pot is dishwasher safe and easy to clean.
- Cons: Carries a very high price tag for its limited functionality. Lacks the multi-cooking features of competitors. It is not as widely available as mass-market brands.
This slow cooker is ideal for the health-focused cook who prioritizes material safety and build quality over extra bells and whistles and is willing to invest in a premium appliance.
Shop this product: greenpan.us/products/premiere-stainless-steel-6-quart-slow-cooker
Ninja Foodi PossibleCooker PRO
The Ninja Foodi PossibleCooker PRO is a versatile kitchen workhorse that does a lot more than just slow cook. It’s an 8-in-1 appliance designed for maximum convenience, allowing you to sear, sauté, steam, bake, and more in the same pot, making it perfect for preparing complex meals with fewer dishes to clean.
- What it is: An 8.5-quart multi-cooker with eight functions: Slow Cook, Sear/Sauté, Steam, Keep Warm, Sous Vide, Braise, Bake, and Proof.
- Key features: Large 8.5-quart capacity, removable cooking pot is oven-safe up to 500°F, intuitive digital controls, and includes an integrated spoon and steaming rack.
- Price: Around $129.99
- Style: Utilitarian and tech-forward, with a black and stainless steel housing that matches other Ninja appliances. Its focus is clearly on functionality.
- Materials/Construction: The cooking pot has a non-stick coating over an aluminum base. The appliance's exterior is a mix of high-quality plastic and metal accents.
- Pros: Unbeatable versatility with its 8-in-1 functionality. The ability to sear and sauté in the pot saves time and adds flavor. It has a huge capacity for large families or batch cooking. It's an excellent value for what it offers.
- Cons: Its multiple functions mean it's bulkier than a standard slow cooker. The non-stick coating isn't explicitly marketed as PFOA/PFAS-free in the same way GreenPan’s is.
The Ninja PossibleCooker PRO is built for busy households that need a reliable, all-in-one appliance to streamline meal prep from start to finish.
Shop this product: ninjakitchen.com/products/ninja-foodi-possiblecooker-pro
GreenPan vs. Ninja Slow Cooker Comparison
Materials & Construction
This is where the two brands have fundamentally different philosophies. GreenPan builds its reputation on its patented Thermolon ceramic non-stick coating, which is guaranteed free of PFOA, PFAS, lead, and cadmium. This makes the GreenPan Premiere the clear choice for anyone prioritizing non-toxic materials. The rest of the unit is made of heavy-duty stainless steel, giving it a premium feel.
The Ninja uses a standard non-stick aluminum pot. While effective and easy to clean, it doesn't come with the same health-focused guarantees as GreenPan. The exterior construction balances metal and durable plastic to keep the unit affordable and lightweight despite its size.
Functionality & Features
Ninja wins on functionality by a wide margin. The PossibleCooker PRO isn't just a slow cooker, it's a multi-cooker. The headline feature is the ability to sear or sauté directly in the cooking pot before slow cooking, which is key for developing flavor in braises and stews. Add in bake, steam, and even sous vide functions, and it becomes a truly all-in-one device.
The GreenPan operates like a traditional (though high-end) slow cooker. It has high, low, simmer, and warm settings that it executes perfectly, but it can't sear meat or sauté vegetables. You will need a separate pan for those steps, which means more cleanup.
Price & Value
At around $130, the Ninja PossibleCooker PRO offers incredible value. Factoring in its eight functions and large capacity, it can replace several other kitchen appliances, saving both money and counter space. The GreenPan Premiere Slow Cooker costs more than twice as much, at about $280. Its value isn't in features but in its premium, health-conscious construction. You're paying for the high-quality, non-toxic materials.
Sizing & Capacity
The Ninja model is larger and holds more, with an 8.5-quart capacity perfect for serving large crowds, batch cooking, or fitting bigger cuts of meat like a pork shoulder or whole chicken. The GreenPan's 6-quart capacity is a very standard size that is ample for most families of four to six, fitting typical slow cooker recipes perfectly.
Who Each One Works Best For
The choice here depends entirely on your cooking priorities. The GreenPan Premiere is built for the user who values material safety above all. If you are actively working to remove PFAS from your kitchen and want a dedicated slow cooker that is built to last from premium, non-toxic materials, this is your best option, provided you accept its high cost and limited function.
Conversely, the Ninja PossibleCooker PRO is for the pragmatic, busy cook who wants the most bang for their buck. If your top priority is convenience, versatility, and getting dinner on the table with minimal fuss and cleanup, this appliance is a clear winner. Its ability to handle so many cooking tasks makes it an invaluable tool for weeknight meals.
Which One Should You Choose?
Both slow cookers are excellent choices, but they are designed for completely different needs and priorities.
Choose the GreenPan Premiere Slow Cooker if:
- A non-toxic, PFAS-free cooking surface is your number one priority.
- You appreciate a simple, dedicated appliance with minimalist design and premium materials.
- You already have pans for searing and don't mind using another dish.
- Budget is not your primary concern, and you're willing to pay more for quality construction.
Choose the Ninja Foodi PossibleCooker PRO if:
- You want maximum versatility and the best value for your money.
- You love the idea of an all-in-one appliance that can sear, sauté, steam, and more.
- You need a large capacity for feeding a big family or prepping meals for the week.
- Convenience and fewer dishes to clean are more important than non-toxic guarantees.
Frequently Asked Questions
What’s the main difference between the GreenPan and Ninja slow cookers?
The main difference is their core focus. GreenPan focuses on providing a high-quality, non-toxic ceramic cooking surface in a premium, single-function appliance. Ninja focuses on providing maximum versatility and convenience with 8-in-1 cooking functions in an affordable, feature-packed appliance.
Is the GreenPan slow cooker really non-toxic?
Yes. The GreenPan slow cooker uses the brand's Thermolon Volt ceramic non-stick coating, which is externally certified to be free of per- and polyfluoroalkyl substances (PFAS), perfluorooctanoic acid (PFOA), lead, and cadmium.
Can you sear meat in the Ninja PossibleCooker?
Yes. The Sear/Sauté function is one of its most popular features. It allows you to brown meat and soften vegetables directly in the cooking pot at temperatures up to 500°F before switching to the slow cook function, which adds significant flavor to your final dish.
Can you put the insert of either slow cooker in the oven?
Yes, both removable cooking pots are oven-safe. The Ninja PossibleCooker pot is safe up to 500°F. The GreenPan Premiere pot is also oven and stovetop safe (excluding induction), giving you flexibility for finishing a dish or keeping it warm.
Which is easier to clean?
Both are very easy to clean. The excellent non-stick surfaces on both models ensure food doesn't stick, and both removable pots are dishwasher safe for ultimate convenience.
Is the Ninja a true slow cooker?
Absolutely. While it does seven other things, Slow Cook (with high and low settings) is a core function of the Ninja PossibleCooker. It performs just as well as a dedicated machine while offering much more.
Which brand is better for a health-conscious cook?
GreenPan is the better choice for a health-conscious cook specifically concerned with the chemical compositions of non-stick coatings. Their explicit PFOA- and PFAS-free guarantee is the main reason to choose their product.
Is the Ninja PossibleCooker worth the counter space?
For most households, yes. While it is larger than the GreenPan Slow Cooker, it can potentially replace a frying pan, stockpot, steamer, and sous vide machine, ultimately saving you storage and counter space elsewhere in the kitchen.
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