{"meta":{"api_version":"v1","data_status":"verified","category":"air-fryer","market":"GB","evidence_checked_at":"2026-07-30T20:39:46.000Z","generated_at":null,"comparison_schema_version":"review-led-category-index-v1.0","method_version":"flexible-review-led-category-v1.1","comparison_status":"published_bounded_comparison","included_product_count":5,"quality_ordered_count":4,"routed_specialist_count":1,"purchase_advice_supported":false,"ranking_basis":"Flexible qualitative exact-model review synthesis using category-specific evidence needs and visible disagreement.","review_policy":"Published bounded comparison using corroborated exact-model evidence, one clear editorial order and specialist labels.","commercial_policy":"Price, availability, affiliate state and conversion data cannot change the review-led result.","methodology_url":"https://agentreviewdata.com/methodology#review-led-all-categories"},"data":{"schema_version":"review-led-category-index-v1.0","method_version":"flexible-review-led-category-v1.1","category":"air-fryer","market":"GB","published_at":"2026-07-30T21:32:49Z","evidence_checked_at":"2026-07-30T20:39:46.000Z","status":"published_bounded_comparison","purchase_advice_supported":false,"title":"Air fryer review-led quality comparison","summary":"Four exact Ninja dual-zone models support one simple all-round order, while the narrow Double Stack is fifth with a clear space-saving specialist label. Cooking results, evenness, controls, cleaning and basket format lead the judgement.","cohort":{"tracked_product_count":20,"reviewed_product_count":5,"quality_ordered_count":4,"routed_specialist_count":1,"review_and_test_source_count":11,"independent_publisher_group_count":3,"unreviewed_product_count":15,"not_whole_market":true,"coverage_status":"material_gaps_visible"},"candidate_universe_rule":"Tracked GB air fryers with exact SKU matches to at least two independent hands-on publications. Similar US models, differently sized variants and nearby Cosori families are not treated as exact substitutes.","selection_note":"The prior spec-led Cosori leader is not retained because exact UK hands-on coverage is insufficient. Five exact Ninja models clear the review gate; the remaining tracked products stay unreviewed.","quality_basis":{"uses_universal_numeric_score":false,"uses_price":false,"uses_availability":false,"uses_affiliate_or_conversion_data":false,"approach":"Synthesize observed chips, meat, vegetables and baked-food results with repeat-use findings about browning, preheating, shaking, controls, cleaning, basket flexibility and countertop fit. Capacity and wattage provide context but do not decide quality.","minimum_publication_gate":"Two independent publisher groups per exact ordered or specialist model, with described cooked-food outcomes and everyday usability evidence.","topic_priority":["Cooking evenness, crisping and repeatability across foods","Speed without excessive shaking or intervention","Basket flexibility and usable capacity","Controls, synchronisation and probe behaviour","Cleaning, heat leakage and countertop fit"]},"products":[{"product_id":"prd-air-fryer-af500uk","product_name":"Ninja Foodi FlexDrawer Air Fryer 10.4L","slug":"ninja-af500uk","brand":"Ninja","model":"AF500UK","image":{"url":"https://assets.sharkninja.com/image/upload/f_auto/q_auto/SharkNinja-EU/AF500UK_01.jpg","source_url":"https://www.sharkninja.co.uk/ninja-foodi-flexdrawer-air-fryer-10.4l/AF500UK.html","alt":"Ninja Foodi FlexDrawer Air Fryer product image","credit":"Ninja UK product page","checked_at":"2026-07-29T17:17:15.937Z","rights_status":"source_hosted_manufacturer"},"quality_status":"quality_ordered","quality_position_label":"#1","position_range":{"low":1,"high":1},"tier":"Top flexible large-capacity group","confidence":"high","best_for":["Larger households","Switching between two zones and one wide drawer"],"rationale":"Strong food results and the removable divider make this the most flexible large-format design in the evidenced cohort. Heat transfer between zones and a cumbersome basket remain visible caveats to its first-place position.","strengths":["Strong chips and chicken results in hands-on tests","Divider enables two-zone or full-width cooking","Large usable capacity","Well-established controls and timing functions"],"limitations":["Heat can leak across the divider","Large basket can be awkward to wash and handle","Requires substantial countertop and storage space"],"sense_check":"A strong large-family all-rounder, but not automatically the best choice for a small kitchen or fully isolated dual-zone cooking.","review_and_test_sources":[{"source_id":"af-er-af500","publisher":"Expert Reviews","publisher_group":"Expert Reviews","title":"Ninja Foodi FlexDrawer AF500UK review","url":"https://www.expertreviews.co.uk/home-garden/small-appliances/air-fryers/ninja-foodi-flexdrawer-dual-air-fryer-af500uk-review","source_kind":"hands_on_review","checked_at":"2026-07-30T20:39:46.000Z","test_context":"The exact AF500UK was used for chips, chicken and other foods in divided and full-width basket modes. The review assessed browning, speed, controls, cleaning and heat transfer across the removable divider."},{"source_id":"af-idealhome-af500","publisher":"Ideal Home","publisher_group":"Future plc","title":"Best dual-zone air fryers, tested","url":"https://www.idealhome.co.uk/kitchen/best-dual-zone-air-fryers","source_kind":"hands_on_roundup","checked_at":"2026-07-30T20:39:46.000Z","test_context":"The AF500UK was cooked with and compared against other dual-zone models. Testers considered food results, flexible drawer use, controls, cleaning, footprint and suitability for larger households."}],"lowest_checked_offer":{"status":"stale","retailer":"Argos","price_gbp":null,"availability":null,"checked_at":"2026-07-29T20:22:45.000Z","freshness":{"status":"stale","checked_at":"2026-07-29T20:22:45.000Z","fresh_until":"2026-07-31T20:22:45.000Z","freshness_threshold_hours":48,"usable_for_current_price":false,"usable_for_current_availability":false},"tracked_offer_count":2,"fresh_offer_count":0,"selection_basis":"most_recent_tracked_offer_no_fresh_price","scope":"tracked_retailers_not_whole_market","retailer_url":"https://agentreviewdata.com/go/ninja-af500uk?from=api"},"links":{"html":"https://agentreviewdata.com/categories/air-fryers#ninja-af500uk","product":"https://agentreviewdata.com/products/ninja-af500uk","offer":"https://agentreviewdata.com/go/ninja-af500uk?from=api"}},{"product_id":"prd-air-fryer-af451uk","product_name":"Ninja Foodi MAX Dual Zone Air Fryer with Smart Cook System AF451UK","slug":"ninja-af451uk","brand":"Ninja","model":"AF451UK","image":{"url":"https://assets.sharkninja.com/image/upload/f_auto/q_auto/SharkNinja-EU/AF451UK_01.jpg","source_url":"https://www.sharkninja.co.uk/ninja-foodi-max-dual-zone-air-fryer-with-smart-cook-system-af451uk/AF451UK.html","alt":"Ninja Foodi MAX Dual Zone Air Fryer with Smart Cook System product image","credit":"Ninja UK product page","checked_at":"2026-07-29T17:17:15.937Z","rights_status":"source_hosted_manufacturer"},"quality_status":"quality_ordered","quality_position_label":"#2","position_range":{"low":2,"high":2},"tier":"Top conventional dual-drawer group","confidence":"high","best_for":["Two independent dishes","Meat cooking with a temperature probe"],"rationale":"Independent cooking tests support consistent everyday results, useful synchronisation and a genuinely helpful probe. Different household needs can reasonably place it anywhere in the leading group.","strengths":["Strong results across chips, vegetables and chicken","Useful probe for meat cooking","Two truly separate drawers","Approachable sync and match controls"],"limitations":["Two drawers cannot become one wide cooking zone","Wide countertop footprint","More controls and accessories than some users need"],"sense_check":"A credible leading dual-drawer model, with its probe and separation more important than nominal wattage.","review_and_test_sources":[{"source_id":"af-goodfood-af451","publisher":"Good Food","publisher_group":"Immediate Media","title":"Ninja Foodi Dual Zone AF451UK review","url":"https://www.bbcgoodfood.com/review/ninja-foodi-dual-zone-air-fryer-af451uk","source_kind":"hands_on_review","checked_at":"2026-07-30T20:39:46.000Z","test_context":"Good Food tested the exact AF451UK on chips, aubergine, chicken and other recipes, assessing the probe, two-zone synchronisation, cooking results, controls and cleaning."},{"source_id":"af-t3-af451","publisher":"T3","publisher_group":"Future plc","title":"Ninja Foodi Max Dual Zone air fryer review","url":"https://www.t3.com/reviews/ninja-foodi-max-dual-zone-air-fryer","source_kind":"hands_on_review","checked_at":"2026-07-30T20:39:46.000Z","test_context":"The UK MAX dual-zone model with probe was used over multiple cooking tasks. The review covered consistency, speed, zone controls, probe usefulness, basket handling and countertop footprint."}],"lowest_checked_offer":{"status":"stale","retailer":"Very","price_gbp":null,"availability":null,"checked_at":"2026-07-29T20:22:45.000Z","freshness":{"status":"stale","checked_at":"2026-07-29T20:22:45.000Z","fresh_until":"2026-07-31T20:22:45.000Z","freshness_threshold_hours":48,"usable_for_current_price":false,"usable_for_current_availability":false},"tracked_offer_count":2,"fresh_offer_count":0,"selection_basis":"most_recent_tracked_offer_no_fresh_price","scope":"tracked_retailers_not_whole_market","retailer_url":"https://agentreviewdata.com/go/ninja-af451uk?from=api"},"links":{"html":"https://agentreviewdata.com/categories/air-fryers#ninja-af451uk","product":"https://agentreviewdata.com/products/ninja-af451uk","offer":"https://agentreviewdata.com/go/ninja-af451uk?from=api"}},{"product_id":"prd-air-fryer-af400uk","product_name":"Ninja Foodi MAX Dual Zone Air Fryer AF400UK","slug":"ninja-af400uk","brand":"Ninja","model":"AF400UK","image":{"url":"https://assets.sharkninja.com/image/upload/f_auto/q_auto/SharkNinja-EU/AF400UK_01.jpg","source_url":"https://www.sharkninja.co.uk/ninja-foodi-max-dual-zone-air-fryer-af400uk/AF400UK.html","alt":"Ninja Foodi MAX Dual Zone Air Fryer product image","credit":"Ninja UK product page","checked_at":"2026-07-29T17:17:15.937Z","rights_status":"source_hosted_manufacturer"},"quality_status":"quality_ordered","quality_position_label":"#3","position_range":{"low":3,"high":3},"tier":"Strong conventional dual-drawer group","confidence":"high","best_for":["General two-drawer family cooking","Users who do not need a temperature probe"],"rationale":"The AF400UK is a strong, mature dual-drawer all-rounder, but one test found uneven fry browning unless food was shaken repeatedly. It is placed third and that conflicting result remains explicit.","strengths":["Good capacity across two independent drawers","Useful synchronised finish controls","Broad cooking functions","Positive results across multiple foods"],"limitations":["Fry browning may require repeated shaking","No integrated temperature probe","Wide footprint"],"sense_check":"A dependable all-round option, but the uneven-browning finding prevents a narrow top claim.","review_and_test_sources":[{"source_id":"af-goodfood-af400","publisher":"Good Food","publisher_group":"Immediate Media","title":"Ninja Dual Zone AF400UK review","url":"https://www.bbcgoodfood.com/review/ninja-dual-zone-air-fryer-af400uk","source_kind":"hands_on_review","checked_at":"2026-07-30T20:39:46.000Z","test_context":"The exact AF400UK was tested with a range of foods and assessed for two-drawer timing, controls, capacity, results and cleaning."},{"source_id":"af-techradar-af400","publisher":"TechRadar","publisher_group":"Future plc","title":"Ninja Foodi Max Dual Zone AF400UK review","url":"https://www.techradar.com/reviews/ninja-foodi-max-dual-zone-air-fryer-af400uk","source_kind":"hands_on_review","checked_at":"2026-07-30T20:39:46.000Z","test_context":"Hands-on cooking covered chips and other everyday foods, drawer synchronisation, controls and cleaning. The tester found fry browning could be uneven without repeated shaking."}],"lowest_checked_offer":{"status":"stale","retailer":"Ninja UK","price_gbp":null,"availability":null,"checked_at":"2026-07-29T17:17:15.937Z","freshness":{"status":"stale","checked_at":"2026-07-29T17:17:15.937Z","fresh_until":"2026-07-31T17:17:15.937Z","freshness_threshold_hours":48,"usable_for_current_price":false,"usable_for_current_availability":false},"tracked_offer_count":1,"fresh_offer_count":0,"selection_basis":"most_recent_tracked_offer_no_fresh_price","scope":"tracked_retailers_not_whole_market","retailer_url":"https://agentreviewdata.com/go/ninja-af400uk?from=api"},"links":{"html":"https://agentreviewdata.com/categories/air-fryers#ninja-af400uk","product":"https://agentreviewdata.com/products/ninja-af400uk","offer":"https://agentreviewdata.com/go/ninja-af400uk?from=api"}},{"product_id":"prd-air-fryer-af300uk","product_name":"Ninja Foodi Dual Zone Air Fryer - AF300UK","slug":"ninja-af300uk","brand":"Ninja","model":"AF300UK","image":{"url":"https://assets.sharkninja.com/image/upload/f_auto/q_auto/SharkNinja-EU/AF300UK_01.jpg","source_url":"https://www.sharkninja.co.uk/ninja-foodi-dual-zone-air-fryer-af300uk/AF300UK.html","alt":"Ninja Foodi Dual Zone Air Fryer product image","credit":"Ninja UK product page","checked_at":"2026-07-29T17:17:15.937Z","rights_status":"source_hosted_manufacturer"},"quality_status":"quality_ordered","quality_position_label":"#4","position_range":{"low":4,"high":4},"tier":"Proven smaller dual-drawer group","confidence":"moderate","best_for":["Smaller households wanting two drawers","Established simple dual-zone cooking"],"rationale":"Two established hands-on reviews support sound food results and usable dual-zone controls. Its smaller capacity and older format place it below the larger leading group for the use cases represented here.","strengths":["Proven two-zone cooking","Good everyday food results","Simpler and smaller than the 9.5L and 10.4L models","Straightforward cleaning"],"limitations":["Less usable capacity for larger households","No probe or convertible wide drawer","Older design than the leading models"],"sense_check":"A viable smaller dual-zone choice rather than a performance failure; household size is central to the fit.","review_and_test_sources":[{"source_id":"af-er-af300","publisher":"Expert Reviews","publisher_group":"Expert Reviews","title":"Ninja Foodi Dual Zone AF300UK review","url":"https://www.expertreviews.co.uk/home-garden/small-appliances/air-fryers/ninja-foodi-dual-zone-air-fryer-af300uk-review","source_kind":"hands_on_review","checked_at":"2026-07-30T20:39:46.000Z","test_context":"The exact 7.6L model was tested for cooking quality, two-zone timing, controls, basket capacity, cleaning and everyday ease of use."},{"source_id":"af-goodfood-af300","publisher":"Good Food","publisher_group":"Immediate Media","title":"Ninja Foodi Dual Zone air fryer review","url":"https://www.bbcgoodfood.com/review/ninja-foodi-dual-zone-air-fryer-review","source_kind":"hands_on_review","checked_at":"2026-07-30T20:39:46.000Z","test_context":"Good Food cooked across both AF300UK drawers and assessed food finish, synchronisation, capacity, functions, handling and cleanup."}],"lowest_checked_offer":{"status":"stale","retailer":"Ninja UK","price_gbp":null,"availability":null,"checked_at":"2026-07-29T17:17:15.937Z","freshness":{"status":"stale","checked_at":"2026-07-29T17:17:15.937Z","fresh_until":"2026-07-31T17:17:15.937Z","freshness_threshold_hours":48,"usable_for_current_price":false,"usable_for_current_availability":false},"tracked_offer_count":1,"fresh_offer_count":0,"selection_basis":"most_recent_tracked_offer_no_fresh_price","scope":"tracked_retailers_not_whole_market","retailer_url":"https://agentreviewdata.com/go/ninja-af300uk?from=api"},"links":{"html":"https://agentreviewdata.com/categories/air-fryers#ninja-af300uk","product":"https://agentreviewdata.com/products/ninja-af300uk","offer":"https://agentreviewdata.com/go/ninja-af300uk?from=api"}},{"product_id":"prd-air-fryer-sl400uk","product_name":"Ninja Double Stack XL 9.5L Air Fryer SL400UK","slug":"ninja-sl400uk","brand":"Ninja","model":"SL400UK","image":{"url":"https://assets.sharkninja.com/image/upload/f_auto/q_auto/SharkNinja-EU/SL400UK_01.jpg","source_url":"https://www.sharkninja.co.uk/ninja-double-stack-xl-9-5l-air-fryer-sl400uk/SL400UK.html","alt":"Ninja DoubleStack XL Air Fryer product image","credit":"Ninja UK product page","checked_at":"2026-07-29T17:17:15.937Z","rights_status":"source_hosted_manufacturer"},"quality_status":"routed_specialist","quality_position_label":"#5","position_range":{"low":5,"high":5},"tier":"Narrow-counter specialist","confidence":"high","best_for":["Narrow countertops","Households prioritising footprint over fastest even cooking"],"rationale":"The stacked format solves a real space problem and performs well enough for everyday use, but reviewers disagree on its cooking pace and evenness. It is fifth overall and clearly labelled as the narrow-counter specialist.","strengths":["Much narrower countertop footprint than side-by-side drawers","Large nominal capacity in a compact width","Flexible rack and drawer combinations","Strong current guide support for space-limited kitchens"],"limitations":["Some tests found slower cooking","Browning can vary by rack and drawer position","Stacked layout adds placement complexity"],"sense_check":"Its value is architectural: it fits kitchens that wide dual-drawer models do not. That does not establish all-round cooking superiority.","review_and_test_sources":[{"source_id":"af-er-sl400","publisher":"Expert Reviews","publisher_group":"Expert Reviews","title":"Ninja Double Stack XL SL400UK review","url":"https://www.expertreviews.co.uk/home-garden/small-appliances/air-fryers/ninja-doublestack-xl-air-fryer-review","source_kind":"hands_on_review","checked_at":"2026-07-30T20:39:46.000Z","test_context":"The exact stacked model was tested for food results, upper and lower rack evenness, speed, controls, cleaning and the practical benefit of its narrower footprint. The reviewer found slower cooking and some uneven browning."},{"source_id":"af-techradar-sl400","publisher":"TechRadar","publisher_group":"Future plc","title":"Ninja Double Stack air fryer review","url":"https://www.techradar.com/home/air-fryers/ninja-double-stack-air-fryer-review","source_kind":"hands_on_review","checked_at":"2026-07-30T20:39:46.000Z","test_context":"TechRadar tested the UK Double Stack layout on multiple foods, examining rack placement, cooking consistency, controls, capacity, cleaning and countertop space."},{"source_id":"af-goodfood-roundup-sl400","publisher":"Good Food","publisher_group":"Immediate Media","title":"Best air fryers, tested and reviewed","url":"https://www.bbcgoodfood.com/review/best-air-fryers/","source_kind":"hands_on_roundup","checked_at":"2026-07-30T20:39:46.000Z","test_context":"The current tested guide includes the SL400UK and weighs food results, usable capacity, functions, ease of use, cleaning and the stacked format against a wider set of air fryers."}],"lowest_checked_offer":{"status":"stale","retailer":"Ninja UK","price_gbp":null,"availability":null,"checked_at":"2026-07-29T17:17:15.937Z","freshness":{"status":"stale","checked_at":"2026-07-29T17:17:15.937Z","fresh_until":"2026-07-31T17:17:15.937Z","freshness_threshold_hours":48,"usable_for_current_price":false,"usable_for_current_availability":false},"tracked_offer_count":1,"fresh_offer_count":0,"selection_basis":"most_recent_tracked_offer_no_fresh_price","scope":"tracked_retailers_not_whole_market","retailer_url":"https://agentreviewdata.com/go/ninja-sl400uk?from=api"},"links":{"html":"https://agentreviewdata.com/categories/air-fryers#ninja-sl400uk","product":"https://agentreviewdata.com/products/ninja-sl400uk","offer":"https://agentreviewdata.com/go/ninja-sl400uk?from=api"}}],"unreviewed_products":[{"product_id":"prd-air-fryer-kaapafcssuk0202a","product_name":"COSORI Dual Blaze Twinfry™ 10L Smart Air Fryer - 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DZ801UK","slug":"ninja-dz801uk","model":"DZ801UK","status":"no_published_review_result","reason":"No exact-model review and test corpus has passed this category's publication gate.","links":{"product":"https://agentreviewdata.com/products/ninja-dz801uk"}},{"product_id":"prd-air-fryer-sl300uk","product_name":"Ninja Double Stack 2-Drawer Air Fryer 7.6L – SL300UK","slug":"ninja-sl300uk","model":"SL300UK","status":"no_published_review_result","reason":"No exact-model review and test corpus has passed this category's publication gate.","links":{"product":"https://agentreviewdata.com/products/ninja-sl300uk"}},{"product_id":"prd-air-fryer-af200uk","product_name":"Ninja Foodi 4-in-1 Dual Zone Air Fryer 7.6L AF200UK","slug":"ninja-af200uk","model":"AF200UK","status":"no_published_review_result","reason":"No exact-model review and test corpus has passed this category's publication gate.","links":{"product":"https://agentreviewdata.com/products/ninja-af200uk"}},{"product_id":"prd-air-fryer-kaapafcsnuk0184y","product_name":"COSORI TurboBlaze™ 6L Air Fryer","slug":"cosori-kaapafcsnuk0184y","model":"KAAPAFCSNUK0184Y","status":"no_published_review_result","reason":"No exact-model review and test corpus has passed this category's publication gate.","links":{"product":"https://agentreviewdata.com/products/cosori-kaapafcsnuk0184y"}},{"product_id":"prd-air-fryer-af180ukbrn","product_name":"Ninja Air Fryer MAX PRO 6.2L AF180UK","slug":"ninja-af180ukbrn","model":"AF180UKBRN","status":"no_published_review_result","reason":"No exact-model review and test corpus has passed this category's publication gate.","links":{"product":"https://agentreviewdata.com/products/ninja-af180ukbrn"}},{"product_id":"prd-air-fryer-af170uk","product_name":"Ninja Air Fryer MAX 6.2L AF170UK","slug":"ninja-af170uk","model":"AF170UK","status":"no_published_review_result","reason":"No exact-model review and test corpus has passed this category's publication gate.","links":{"product":"https://agentreviewdata.com/products/ninja-af170uk"}},{"product_id":"prd-air-fryer-af140ukbrn","product_name":"Ninja Air Fryer PRO 4.7L AF140UK","slug":"ninja-af140ukbrn","model":"AF140UKBRN","status":"no_published_review_result","reason":"No exact-model review and test corpus has passed this category's publication gate.","links":{"product":"https://agentreviewdata.com/products/ninja-af140ukbrn"}}],"market_context_gaps":[{"name":"Broader single-basket and premium brands","segment":"Whole-market air fryers","reason":"The tracked catalogue is concentrated on Ninja and Cosori. Trusted tested guides also include Philips, Instant, Tefal and Tower designs, including strong single-basket alternatives that could change the best fit for smaller households.","evidence_urls":["https://www.bbcgoodfood.com/review/best-air-fryers/","https://www.idealhome.co.uk/buying-guide-reviews/best-air-fryers-226692"]}],"limitations":["The ordered cohort is Ninja-only because exact tracked Cosori SKU evidence did not clear the gate.","Recipes, load size, shaking and food preparation vary between reviewers.","The simple order is an editorial judgement over close evidence, not a measured universal quality gap.","Fifteen tracked models remain outside the review-led cohort."],"links":{"html":"https://agentreviewdata.com/categories/air-fryers","methodology":"https://agentreviewdata.com/methodology#review-led-all-categories","specification_comparison":"https://agentreviewdata.com/api/v1/compare?category=air-fryer"}}}