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For the UK Ninja Grill & Air Fryer EG351UK, choose Grill for char and searing, Air Fry for crispness, Roast for larger oven-style dishes, Bake for cakes and breads, and Dehydrate for drying foods. First check your appliance’s model number and control panel: Ninja uses “5-in-1” for other appliances with different functions, so the name alone does not identify the modes.
Check which Ninja 5-in-1 you own
This guide is for the UK Ninja 5-in-1 Grill & Air Fryer EG351UK and its EG351UKCYD variant. Ninja lists its functions as Grill, Air Fry, Roast, Bake, and Dehydrate, and says the appliance includes a recipe guide and cooking charts. Check the model number and compare the controls on your unit before following mode-specific advice; a different Ninja product described as “5-in-1” may have another set of functions.
Match the mode to the result you want
| Mode | Choose it for | Practical guide |
|---|---|---|
| Grill | Direct grill-style cooking, char, or a seared surface | Use it when the recipe specifies Grill or when a grill-style finish is the aim. Ninja describes this mode as adding chargrilled flavour to meat, vegetables, and fish; that is the manufacturer’s product description. |
| Air Fry | A crisp, crunchy exterior | A natural choice for chips and similar foods where surface crispness matters. Check the food as it cooks: one TechRadar reviewer found some vegetables and fries needed frequent checking and adjustment on the EG351UK. |
| Roast | Larger items or an oven-style roast | Follow the recipe’s Roast instructions for meat and vegetables. Do not treat a single recipe’s temperature or timing as a universal setting. |
| Bake | Cakes, breads, and other baked goods | Use a recipe written for this appliance where possible. Bake is not automatically interchangeable with Roast. |
| Dehydrate | Drying fruit, vegetables, or meat for snacks | Use directions that specify preparation and drying time. The mode choice alone does not establish safe storage or food-safety guidance. |
When two modes seem plausible
Choose using the recipe first, then compare the intended surface and texture, the food’s size and shape, and whether the instructions were written for your exact model. A roast may benefit from browning, for example, but that does not make Grill or Air Fry a direct substitute for the recipe’s Roast instructions.
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For a mixed meal, components may call for different modes or timings. Ninja’s Roast Chicken & Root Vegetables recipe uses Roast for a whole chicken and Air Fry for vegetables in separate drawers on a dual-zone product. It illustrates matching a function to a component; it is not an EG351UK recipe, and its settings should not be transferred to the EG351UK without suitable instructions.
#1 Best Overall
- 5-IN-1 INDOOR GRILL & AIR FRYER: The Ninja Foodi AG301 grills, air fries, roasts, bakes, and dehydrates — 5 versatile functions in one countertop appliance for real char-grilled flavor indoors, any day of the year.
- CYCLONIC GRILLING TECHNOLOGY: 500°F rapid cyclonic air delivers Surround Searing — circulating superhot air around every side of your food while the 500°F grill grate brands authentic char-grilled marks directly onto proteins and vegetables.
- OUTDOOR GRILLING POWER: Engineered with the BTU cooking power of a full-size outdoor grill, the AG301 replicates the high-heat sear and char-grilled flavor of a gas or charcoal grill — right from your countertop, year-round.
- COOK FROM FROZEN — CHAR-GRILLED IN UNDER 25 MINUTES: The AG301 takes frozen steaks, chicken breasts, burgers, and fish fillets straight from frozen to perfectly char-grilled in under 25 minutes — no thawing required.
- AIR FRY WITH UP TO 75% LESS FAT: The 4-qt crisper basket air fries wings, fries, and more with up to 75% less fat than traditional deep frying* — crispy results with little to no oil. *vs. hand-cut deep-fried French fries.
Use recipe-specific settings, not a blanket conversion
Ninja Test Kitchen’s Roast Beef & Roast Potatoes recipe calls for Roast at 180°C for its beef and suggests 10 additional minutes of Roast for the potatoes if they need more browning. Those directions apply to that recipe, not every roast or every ingredient.
No universal time-and-temperature conversion from a conventional oven or another air fryer to the EG351UK is established by the sources cited here. Start with an EG351UK recipe or Ninja’s supplied cooking charts, check food during cooking where appropriate, and use the recipe’s relevant doneness cues. Ninja says the appliance includes a digital cooking probe that can monitor food temperature.
Rank #2
- SMART COOK SYSTEM: Achieve the perfect doneness from rare to well done at the touch of a button, with the Foodi Smart Thermometer monitoring your food's internal temperature for you.
- 5-IN-1 VERSATILITY: One appliance does it all—Grill, Air Crisp, Bake, Roast, and Dehydrate for endless meal possibilities indoors.
- 500°F CYCLONIC GRILLING TECHNOLOGY: Grill indoors year-round with 500°F Cyclonic Grilling Technology that delivers authentic char-grilled results.
- FROZEN TO CHAR-GRILLED IN 25 MINUTES: Go straight from freezer to perfectly char-grilled in just 25 minutes—no thawing necessary.
- 4-QT AIR FRY CRISPER: Enjoy crispy, guilt-free fried favorites using the 4-qt air fry crisper basket with little to no oil.
In its review dated 20 April 2025, TechRadar’s Vic Hood reported good results in tests of baking, roasting, dehydrating, and grilling on the EG351UK, while some air-fried vegetables and fries required frequent checking and adjustment. That is one reviewer’s experience, not a promise of results for every recipe or kitchen.
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Ninja’s product page gives comparison claims tied to specific foods and methods. They are manufacturer-reported figures, not guaranteed outcomes for every recipe or mode.
Quick Recap
Best Value
- NINJA FOODI SMART XL GRILL: Updated, sleek design with the same functions & benefits. Indoor countertop Grill and Air Fryer with the Smart Cook System & Thermometer.
- SMART COOK SYSTEM & THERMOMETER: The Foodi Smart Thermometer enables you to achieve the perfect doneness, from rare to well-done with 4 protein settings & 9 customizable doneness levels. Do it at the touch of a button with no more guesswork, hassle-free.
- CYCLONIC GRILLING TECHNOLOGY: Uses 500°F of hot cyclonic air and 500°F grill grate to perfectly cook or char grill your food with char-grilled marks and delicious flavors.
- XL FAMILY SIZED CAPACITY: Grill grate fits up to 6 steaks, up to 24 hot dogs, mains & sides, and more at the same time.
- 6 VERSATILE COOKING FUNCTIONS: Grill, Air Crisp, Roast, Bake, Broil, and Dehydrate functions enabled by the wide temperature range.
Rank #4
- NINJA FOODI GRILL: The grill that sears, sizzles, and air fry crisps. New exterior look with all the great functions you love from the original Foodi Grill.
- 6 VERSATILE FUNCTIONS: Grill, Air Crisp, Roast, Bake, Broil, and Dehydrate functions enabled by wide temperature range.
- CYCLONIC GRILLING TECHNOLOGY: Uses 500°F cyclonic air to perfectly cook or char-grill your food to your desired doneness on the grill grate for delicious, char-grilled marks and flavors.
- UP TO 75% LESS FAT: Air fry crisp with up to 75% less fat than deep frying (tested against hand-cut, deep-fried French fries), using the included 4-qt. crisper basket.
- FORGET ABOUT DEFROSTING: Transform foods from frozen to perfectly char-grilled in under 25 minutes.
Rank #3
- SMART INDOOR GRILL & AIR FRYER COMBO: The Ninja Foodi Smart XL Grill is an all-in-one indoor electric grill and air fryer oven that sears, sizzles, and crisps. Ideal for countertop use, it combines grilling and air frying with Ninja’s Smart Cook System and dual-sensor thermometer for perfect results every time
- CYCLONIC GRILLING TECHNOLOGY: Enjoy authentic BBQ grill flavor indoors with 500°F cyclonic air that char-grills food evenly on the grill grate. Get delicious sear marks with no need for outdoor grills or smokers. Perfect for apartments or indoor smokeless grill cooking.
- SMART COOK SYSTEM WITH THERMOMETER: The Foodi Smart Thermometer uses 4 protein presets and 9 doneness levels to take the guesswork out of cooking. Whether it’s rare steak or well-done chicken, get it right every time — no more undercooked meals or overcooking.
- XL CAPACITY FAMILY SIZED CAPACITY: The grill grate fits up to 6 steaks or 24 hot dogs — cook mains and sides all at once. Ideal for large air fryer needs, meal prepping, or family dinners. Also fits well into outdoor kitchen alternatives and tailgating.
- 6-IN-1 VERSATILITY: More than just a grill! This Ninja air fryer also air crisps, roasts, bakes, broils, and dehydrates. From juicy burgers to crispy wings, it replaces multiple appliances. A must-have for fans of air fryer ovens and multi-cookers.
- Up to 75% less fat than deep frying: Ninja says this was tested against deep-fried, hand-cut French fries.
- Up to 50% faster than fan ovens: Ninja says this was tested with fish fingers and sausages using Air Fry.
- Up to 50% less energy than an oven: Ninja says this comparison was based on the recommended cook time for sausages using Air Fry versus conventional ovens.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
