
Ninja DG551 Foodi Smart XL 6-in-1 Indoor Grill With 4Qt. Air Fryer (2nd Gen)
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Our take on the Ninja DG551 Foodi Smart XL 6-in-1 Indoor Grill With 4Qt. Air Fryer (2nd Gen)
The Ninja DG551 is a second-generation Foodi Smart XL indoor grill that also air fries, roasts, bakes, broils and dehydrates. Its 4-quart air fry basket and grill grate let it cook burgers, chicken and vegetables indoors without a stovetop, and the Smart temperature probe lets it cook to a target doneness. It suits households that want grill marks and crispy food from one countertop unit. Against single-function air fryers it is larger and more versatile; against full outdoor grills it gives up smoke and searing heat but works year-round indoors.
- Grill grate leaves sear marks indoors
- Smart probe cooks to a set doneness
- 4-quart basket handles family portions
- Six cooking functions in one unit
- Removable parts are dishwasher safe
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What reviewers say
Owners like the grill marks and the probe-guided cooking, and many use it as their main indoor grill. Complaints center on smoke at high heat, the counter space it takes and cleaning the grate.
- Grill resultsPraisedOwners say chicken and burgers come out with real grill marks and stay juicy.
- Smart probePraisedThe probe is called the standout feature for hitting target doneness without checking.
- SmokeCriticisedReviewers report smoke and odor at high heat, especially with fatty foods.
Questions and answers
- What can the Ninja DG551 do besides grill?
- It air fries, roasts, bakes, broils and dehydrates. The grill grate and 4-quart basket swap for the different functions.
- How does the Smart probe work?
- You set a target doneness and the probe tracks internal temperature, then the unit stops when it is reached. It removes the need to guess cooking times for meat.
- Is it big enough for a family?
- The 4-quart basket suits two to four people for air frying. Large batches may need two rounds.
- Will it smoke up my kitchen?
- High-heat grilling of fatty foods can produce smoke and odor. Ventilation helps, and lower temperatures reduce it.
- How does it compare with the first-generation Foodi Grill?
- This second generation adds the Smart probe and a larger 4-quart air fry capacity. The core grill-and-air-fry design is the same.
- Are the parts dishwasher safe?
- The grill grate, air fry basket and other removable parts are dishwasher safe. The main unit wipes clean.














