cutlery
Enable an AI agent to recognise cutlery, assess its condition and suitability for a meal or service task, and decide how it may be used, cleaned, stored or withdrawn.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
Researched by: Codex + Grok
Purpose and description
Enable an AI agent to recognise cutlery, assess its condition and suitability for a meal or service task, and decide how it may be used, cleaned, stored or withdrawn.
Cutlery is the class of handheld eating and serving implements - principally knives, forks, spoons and matched serving pieces - made to cut, hold, scoop or convey food at table or in food service, and treated in trade, customs and food-contact law as distinct from cookware, holloware and ceramic tableware.
It can be Select a piece for cutting, piercing, scooping, spreading or serving a specified food.; Assemble a place setting or serving set and identify missing functional pieces.; Allocate a piece to a user or dish using recorded handling needs and contact history.; Inspect food-contact surfaces, edges, tines and handle joints before use.; Choose cleaning, drying and storage actions supported by the piece's materials and care evidence.; Withdraw a damaged piece or route it for supported repair, replacement or disposal..
Distinguishing features
Its working end is intended to cut, pierce, scoop, spread or transfer food during eating or table service, rather than primarily prepare ingredients.
It is manipulated as a hand-held implement; a plate or bowl primarily contains or supports food.
Its blade, tines, bowl or combined working end supports an identifiable eating or serving action; appearance alone does not establish that a decorative replica is usable cutlery.
Its intended context distinguishes a table knife from a similar-looking preparation knife; ambiguous pieces require a recorded classification basis.
A set consists of identifiable cutlery pieces with stated roles and quantities, rather than merely objects sharing a decorative pattern.
Scope
+ Eating knives, forks, spoons and their combined or specialised forms
+ Serving implements classified as cutlery
+ Working-end geometry, handles, materials, finishes and construction
+ Condition, cleanliness and documented restrictions on food contact and care
+ Suitability for particular foods, users and dining tasks
+ Membership, completeness and matching of cutlery sets
- Plates, bowls, cups and other food or drink vessels
- Cookware and powered food-processing equipment
- Kitchen preparation knives and tools whose primary role is preparing ingredients
- Menus, recipes and nutritional properties of food
- Furniture, table linens and the overall dining environment
- Clinical assessment of a user's eating or motor abilities
Characteristics
- Implement role
- eating knife | fork | spoon | spreader | combined implement | serving implement | unresolved Determines the food-handling actions the piece is intended to support.
- Working-end geometry
- blade length and width in mm; tine count and spacing in mm; bowl length, width and depth in mm; capacity in mL where relevant Helps distinguish roles and assess portion size, reach and interaction with food.
- Overall size and mass
- length in mm; mass in g Supports assessment of handling effort and suitability for a place setting or serving task.
- Handle and grip configuration
- straight | angled | built-up | looped | other; handedness and grip texture recorded separately Identifies handling options without assuming suitability for a particular user.
- Materials by component
- recorded material of working end, handle, coating and joining components; unknown allowed Supports interpretation of wear, care instructions and documented use restrictions.
- Working-end and joint condition
- observed bending, cracking, chipping, burrs, corrosion, coating loss or looseness; not inspected allowed Reveals defects that may affect eating, serving or continued use.
- Cleanliness and use history
- visible residue present | visibly clean | cleaning recorded | unknown; last use and cleaning method where known Separates visible appearance from evidence supporting readiness for the next use.
- Documented use and care limits
- links to applicable manufacturer instructions or other identified evidence Grounds decisions about food contact, reuse, washing, heat exposure and maintenance.
- Set membership and allocation
- set identifier, piece role, expected quantity, available quantity and assigned place or serving dish Enables completeness checks and prevents a matching appearance from being mistaken for equivalent function.
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 9 layers · 16 findings · 24 questions.
Cutlery identity and role Establishes what the implement is and which eating or serving role it owns.
Similar forms can belong to table service, food preparation or decoration, and those distinctions change permissible use.
Implement classification
Classifies the piece through its working end and intended context.
Working end and intended use
Record the blade, tines, bowl or combined form and the evidence for its eating or serving role.
- Which working-end features identify this piece as a knife, fork, spoon, spreader or combined implement? definition
- What marking, instruction or observed context supports its intended role? provenance
Classification boundaries
Handles pieces whose relationship to cutlery is ambiguous.
Table service versus neighbouring tools
Record whether a disputed piece belongs here or in a neighbouring utensil model, including unresolved cases.
- Is this piece primarily intended for eating, table service, ingredient preparation or display? boundary
- Which registry convention determines whether this specialist utensil belongs to cutlery? provenance
Food handling and user fit Connects cutlery geometry and handling characteristics to a specified food, task and user.
A recognised cutlery type does not by itself establish that a particular piece can perform the required action comfortably or effectively.
Working-end performance
Captures the dimensions and features relevant to manipulating food.
Food-action fit
Record the relationship between working-end geometry and the requested cutting, piercing, scooping or spreading action.
- What blade dimensions, tine spacing or bowl dimensions and capacity are relevant to this task? measurement
- Can this piece perform the required action on the specified food, and what observation supports that judgement? action
Grip and mouth interaction
Addresses hand control and, for eating implements, interaction with the mouth.
Handling fit
Record handle form, size, mass and relevant user requirements without deriving clinical conclusions.
- What are the piece's overall length, mass, handle dimensions and any handle-to-working-end angle? measurement
- Does the intended user need a particular grip, handedness, reach or mouthful size that this piece has been assessed to support? action
Food-contact condition and care Records construction, damage, contamination observations and evidence governing cleaning and continued use.
Cutlery repeatedly contacts food and may contact the mouth, so working-surface condition and care compatibility directly affect readiness.
Materials and integrity
Examines food-contact surfaces and connections between working ends and handles.
Surface and joint serviceability
Record component materials and observed defects separately from any conclusion that continued use is acceptable.
- What evidence identifies the working-end material, handle material and any plating or coating? provenance
- Are there bent tines, blade damage, sharp burrs, chipped bowls, surface deterioration or loose handle joints requiring withdrawal or further assessment? action
Cleaning and reuse
Determines what is known about prior contact and supported care methods.
Next-use readiness
Distinguish observed cleanliness, recorded cleaning and documented reuse limits.
- What is known about the last food or user contact, visible residue and subsequent cleaning? provenance
- Which cleaning, drying and reuse actions are supported by instructions applicable to this piece? action
Sets and service allocation Models cutlery as individual pieces participating in place settings, matched sets and shared serving arrangements.
Service readiness depends on having the required roles and allocating pieces appropriately, not simply counting utensils.
Set composition
Tracks required roles, quantities and optional matching criteria.
Functional completeness
Record what makes a named set complete for its stated purpose, distinguishing function from decorative matching.
- Which implement roles and quantities define this set or place setting? definition
- How many serviceable pieces of each required role are available? measurement
Piece allocation
Assigns pieces to diners, foods or shared service and evaluates substitutions.
Assignment and substitution
Record the intended recipient or dish and the requirements a substitute must satisfy.
- Which diner, place setting or shared dish is this piece assigned to, and what contact restrictions apply? action
- Can another available piece fulfil the same role given its geometry, condition, handling fit and contact history? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Kinds and varieties
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Table knives (dinner knives; often distinguished from steak knives with a sharper or serrated edge)
- Forks (dinner, salad/fish, dessert, oyster and similar tine patterns)
- Spoons (table/soup, dessert, tea and specialist bowls such as grapefruit or condiment)
- Serving and carving pieces (ladles, serving spoons and forks, carving knife and fork, cake and fish servers)
- Specialist dining pieces (butter knives, fish knives, steak knives, sugar tongs)
- Disposable cutlery (plastic, wood, bagasse and other single-use substitutes)
- Combination and outdoor utensils (sporks, camping mess-kit sets)
- Children's feeding cutlery (short, often polymer or coated pieces sold as infant/toddler feeding articles)
- Which of these kinds and varieties hold for the sense of cutlery this model covers, and on what evidence? provenance
Identifiers and schemes
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Wikidata - Q11037 - Item labelled cutlery; confirm on the live item before treating the Q-id as canonical.
- HS / Harmonized System - 8215 - Spoons, forks, ladles, skimmers, cake-servers, fish-knives, butter-knives, sugar tongs and similar kitchen or tableware.
- HS / Harmonized System - 8211 - Knives with cutting blades (including many table and kitchen knives) other than heading 8208; used when the article is classified as a knife rather than as 8215 tableware.
- ISO 8442 product class - ISO 8442-* - Series title is the usual standards identifier for table cutlery and table holloware as food-contact articles.
- Which of these identifiers and schemes hold for the sense of cutlery this model covers, and on what evidence? provenance
Standards and regulation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- ISO 8442 series (ISO) - cutlery and table holloware in contact with food, including stainless and silver-plated table cutlery and blade sharpness tests
- EN 14372 (CEN) - safety of children's cutlery and feeding utensils
- Regulation (EC) No 1935/2004 (EU) - materials and articles intended to come into contact with food
- Commission Regulation (EC) No 2023/2006 (EU) - good manufacturing practice for food-contact materials
- Directive (EU) 2019/904 (EU) - restriction on placing single-use plastic cutlery on the market
- FDA 21 CFR food-contact provisions (US FDA) - polymers and coatings used in plastic and coated cutlery
- UK Hallmarking Act 1973 and assay-office marks (UK) - sterling and other precious-metal cutlery, not stainless
- EN 1811 (CEN) - nickel release from articles intended for prolonged skin contact, relevant to handles
- Which of these standards and regulation hold for the sense of cutlery this model covers, and on what evidence? provenance
Real-world use
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Matched place settings in homes and restaurants: typically a table knife, dinner fork and spoon per cover, with extra pieces added for formal courses
- Boxed retail sets sold by piece count (commonly 16- and 24-piece stainless sets for four or six covers)
- Commercial food service: warewashed stainless in hotels, canteens, airlines (metal or disposable) and healthcare
- Single-use service at takeaway, events and airlines, now often wood or fibre where plastic cutlery is restricted
- Outdoor, military and travel kits, including combined tools such as the spork
- Institutional settings that issue restricted or unsharpened pieces (prisons, some psychiatric wards)
- Precious-metal or plated canteens kept as household silver and used for ceremonial dining
- Which of these real-world use hold for the sense of cutlery this model covers, and on what evidence? provenance
Typical measurements
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Overall length of a dinner knife - 220-250 - mm
- Overall length of a teaspoon - 125-140 - mm
- Mass of a stainless dinner fork - 40-80 - g
- Pieces in a boxed household set - 16-48 - count
- Nominal chromium in 18/10 or 18/0 stainless - 17-19 - % mass
- Nominal nickel in 18/10 stainless (AISI 304 family) - 8-10.5 - % mass
- Silver coating thickness on plated table cutlery (class-dependent) - 5-40 - µm
- Which of these typical measurements hold for the sense of cutlery this model covers, and on what evidence? provenance
Failure modes and hazards
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Pitting and staining of lower-chromium (13/0, some 18/0) stainless in dishwashers, chlorides and acidic foods
- Nickel contact allergy from 18/8-18/10 stainless, especially handles in prolonged skin contact
- Cuts, punctures and (in custodial settings) weaponisation of knives and forks
- Choking, palatal injury and sharp broken edges on children's and cheap disposable pieces
- Silver tarnish and wear-through of plating to a base metal that then corrodes or marks food
- Handle-to-blade failure at rivets, soldered joints or welded bolsters
- Heat deformation, breakage and chemical transfer from poor-quality plastic ware in hot or fatty foods
- Splintering of wooden disposable substitutes introduced after plastic-cutlery bans
- Which of these failure modes and hazards hold for the sense of cutlery this model covers, and on what evidence? provenance
Regional variation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- In British and much Commonwealth usage, cutlery names the knife-fork-spoon set; in US retail and trade, cutlery often means knives, while the set is flatware or silverware
- Formal British place settings still distinguish fish knives/forks and other course-specific pieces more often than typical North American settings
- Continental European table practice keeps the fork in the left hand; US practice commonly switches the fork to the right after cutting
- East Asian everyday eating uses chopsticks; Western cutlery appears mainly in restaurants serving Western-style food
- South Asian everyday practice historically centres on the right hand and the spoon; the fork is a later, still uneven, addition
- German Besteck, French couverts and Italian posate are the ordinary names for the set; couverts also means the place setting as a whole
- EU and UK restrictions on single-use plastic cutlery are stricter than in many other markets, so wooden and fibre disposables are more visible there
- Which of these regional variation hold for the sense of cutlery this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Kitchen / chef's knives (food-preparation cutlery) - Used to prepare food at a board or in a kitchen, not laid as a matched table place setting; ISO 8442-1 vs 8442-2 is the standards split, HS 8211 vs 8215 the customs split when the article is a knife versus spoon/fork tableware.
- Table holloware - Vessels and dishes (teapots, jugs, bowls, entrée dishes) rather than handheld implements; ISO 8442 covers both classes in one series but as separate parts and test regimes.
- Ceramic tableware (crockery / chinaware) - Plates, bowls and cups that hold food; cutlery is the implement that acts on food already served.
- Chopsticks - A paired gripping tool without a blade, tines or bowl; classified and named separately from Western cutlery in trade and in everyday language.
- Cookware - Heated vessels and pans used to cook, not to eat with; not laid at the cover.
- Kitchen serving tools (tongs, spatulas, turners) - Process tools for cooking and plating, not members of a dining canteen or place setting.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of cutlery this model covers, and on what evidence? provenance
Sources
- ISO 8442-2, Materials and articles in contact with foodstuffs - Cutlery and table holloware - Part 2: Requirements for stainless steel and silver-plated cutlery (International Organization for Standardization) - The product class as food-contact table cutlery; stainless and silver-plated construction; performance and coating requirements used for kinds, measurements and materials claims.
- ISO 8442-1, Materials and articles in contact with foodstuffs - Cutlery and table holloware - Part 1: Requirements for cutlery for the preparation of food (International Organization for Standardization) - The neighbouring trade sense in which kitchen/preparation knives are standardised as cutlery, and the test that separates table cutlery from food-preparation cutlery.
- ISO 8442-5, Materials and articles in contact with foodstuffs - Cutlery and table holloware - Part 5: Specification for sharpness and edge retention test of cutlery (International Organization for Standardization) - Blade sharpness and edge-retention as recorded quantities, and dulling as a failure mode for knives.
- EN 14372, Child use and care articles - Cutlery and feeding utensils - Safety requirements and tests (CEN) - Children's feeding cutlery as a distinct kind; small-part, sharpness and material safety hazards.
- Regulation (EC) No 1935/2004 of the European Parliament and of the Council on materials and articles intended to come into contact with food (European Union) - Food-contact framework applying to metal and plastic cutlery placed on the EU market; chemical-transfer hazard.
- Directive (EU) 2019/904 of the European Parliament and of the Council on the reduction of the impact of certain plastic products on the environment (European Union) - Market restriction of single-use plastic cutlery in the EU and the shift to wooden and other disposable substitutes.
- Harmonized Commodity Description and Coding System, Chapter 82, headings 8211 and 8215 (World Customs Organization) - Customs identifiers that split cutting knives (8211) from spoons, forks, ladles, fish-knives, butter-knives and similar kitchen or tableware (8215).
- Cutlery (Wikipedia, Wikimedia Foundation) - English naming split (cutlery vs flatware/silverware), place-setting composition, and the historical Sheffield/trade sense of the word.
What the second pass must settle
- Which registry or existing world-model boundaries govern cutlery, especially chopsticks, serving tongs, ladles and specialist eating tools?
- Which evidence and assessment criteria should establish food-contact suitability for unmarked, antique, plated or decorative pieces?
- What task-specific criteria should govern withdrawal for tine deformation, edge damage, corrosion, coating loss or joint looseness?
- Which cleaning and reuse requirements apply across domestic, commercial and care settings, and how should their applicability be recorded?
- Which recognised methods can assess adaptive cutlery fit and performance without inferring a user's clinical needs?