Ninja Kitchen 2026 Product Review: Crispi Air Fryer, StaySharp Knife Block, Creami Scoop & Swirl

An unsponsored review of three Ninja kitchen products by Sorted Food (a professional chef and a home cook testing together). ## Ninja Crispi Air Fryer — £100 — 3.5/5 A glass-bowl air fryer that roasts, air fries, re-crisps, and keeps warm (40-185°C range). The glass bowl lets you see food cooking and goes directly to fridge/freezer for storage. The verdict: it cooks fine but offers no meaningful advantage over a standard drawer air fryer. Too small for most households (1-2 portions). The marketed "take it to an Airbnb" use case is aspirational at best. Glass visibility is nice but not a purchasing justification. ## Ninja StaySharp Knife Block — £135 — 4/5 Five German steel knives plus scissors with a built-in ceramic wheel sharpener integrated into the block. The sharpener demonstrably works — tested by deliberately blunting and re-sharpening on camera. The knives have comfortable curved bolsters and heavy handles. Claims 10 years of sharpness with recommended maintenance. The chef's caveat applies universally: **never buy a knife block as a set.** Buy individual knives as you discover you need them — most home cooks use 2-3 knives regularly and the rest collect dust. However, the built-in sharpening mechanism is genuinely valuable because it builds a maintenance habit that most home cooks lack. Important limitation: only works with Ninja's own knives — a different brand knife jammed in the sharpener and got stuck. ## Ninja Creami Scoop & Swirl — £300 — 4.5/5 The upgraded Ninja Creami adds a soft serve dispensing mechanism to the original's freeze-then-blend ice cream process. Make a custard base, freeze solid in the included tub, then the machine blends the frozen block smooth and dispenses it. Two processing passes produced the best results — the first pass was too dense, the second pass (using the lighter cycle) produced excellent soft serve texture. Includes protein and light sugar settings for diet-friendly recipes (banana + milk bases work well). Realistic assessment: food hobbyists and families with kids (novelty factor) will get real use from it. Regular households may use it enthusiastically for a few months then shelve it. Of the three products reviewed, this was the only one deemed worthy of a permanent spot in a "dream kitchen."