{ "source": "Cooked Index — occupational AI risk register", "page": "https://cookedindex.com/jobs/mixing-and-blending-machine-setters-operators-and-tenders/", "methodology": "https://cookedindex.com/methodology", "notice": "Verdicts are re-examined as evidence accumulates. Re-fetch before relying on this; the page above always carries the current score.", "scored_at": "2026-08-11", "model": "claude-opus-5", "occupation": { "title": "Mixing and Blending Machine Setters, Operators, and Tenders", "soc_code": "51-9023", "category": "Production", "us_employment": 94920, "median_annual_wage": 48990 }, "verdict": "EXPOSED", "risk_resistance": 38, "contested": false, "near_boundary": false, "dimensions": { "task_resistance": 9, "embodiment": 15, "liability_shield": 3, "trust_premium": 3, "judgment_accountability": 8 }, "reasoning": { "task_resistance": "Recipe download, mass-flow metering, timed agitation and automatic batch logging already run unattended in modern PLC-controlled plants, so the setting and tending half of the job is largely solved — the 9 rather than a 4 comes from the manual charging of 50-lb sacks and drums, hose changeovers, and reacting to material that cakes, bridges in the hopper, or won't disperse.", "embodiment": "You work at the vessel: climbing platforms to charge from above, wrestling totes and drum pumps, scraping caked residue off blades and baffles, breaking down and CIP-ing tanks between runs, in dust, heat, solvent vapor and confined-space entry — a 15 rather than 18 because it is one fixed plant floor with known equipment, not an unpredictable outdoor site.", "liability_shield": "Nothing in the job requires a credential; you may carry a forklift cert, HAZMAT or confined-space training and follow the plant's GMP or FDA/OSHA process safety procedures, but the batch record is signed off by QC and the process engineer, and the 3 reflects that any liability for a bad lot lands on the company, not on you personally.", "trust_premium": "The customer buys a drum of blended product identified by lot number and COA; nobody downstream knows your name, and the 3 rather than 0 only acknowledges that the shift supervisor and QC lab come to trust a specific operator's judgment on which batches to hold.", "judgment_accountability": "You decide when a blend looks right, whether to add extra mix time, when to stop the line and call QC on an off-color or off-viscosity lot — real calls with scrap cost attached, but the formulation, tolerances and hold criteria are written on the batch sheet by someone else, which caps this at 8 rather than 13." }, "rationale": "The core loop — weigh and load ingredients, set mixer speed and time, watch gauges, log batch records, pull samples — is exactly what process control systems and recipe automation have been eating for decades, and AI-assisted batch optimization accelerates it. What holds is the physical side: hauling drums and sacks, hooking up hoses, clearing jammed or caked material, breaking down and sanitizing tanks and blades between runs, and catching an off-viscosity or off-color batch by feel and smell before the sensor flags it. No license protects the role, buyers never meet the operator, and discretion is real but bounded by the recipe sheet.", "outlook": "Headcount keeps drifting down as new plants ship with closed-loop batch control, but the operators who remain will be paid for mechanical setup, changeovers, and troubleshooting rather than tending gauges.", "what_would_raise_it": { "levers": [ { "dimension": "liability_shield", "change": "FDA's Food Traceability Rule (FSMA 204, compliance date extended to 2028) and DSCSA-style batch-record integrity expectations push toward a named, trained human attesting to each batch record. In pharma and dietary supplement blending, cGMP (21 CFR 211.188 / 111.260) already requires a signed, dated batch production record entry by the person performing weighing and mixing plus a second-person verification of component additions — if plants respond to AI-generated records by formally designating the operator as the attesting signer rather than a QA manager, the shield attaches to the role. Watch for FDA warning letters citing unverified automated component addition.", "plausibility": "plausible", "would_add": 4 }, { "dimension": "liability_shield", "change": "Cannabis and infant-formula blending are the tightest cases: state cannabis rules (e.g. Colorado MED, California DCC) already require a named batch operator on the manifest, and the 2023 infant formula recalls drove FDA toward operator-level attestation on nutrient premix addition. Expansion of named-operator manifest requirements into more state-regulated ingredient categories raises this.", "plausibility": "already happening", "would_add": 3 }, { "dimension": "task_resistance", "change": "Task-mix shift is genuine here: this job has a routine tier (weigh, load, set time/speed, log) and a judgment tier (diagnosing why a batch went off-spec, caked material, blade wear, ingredient lot variability, wet-vs-dry season behavior of powders). If recipe automation and inline NIR/rheometry take the routine tier, the surviving role is troubleshooting and lot-variability compensation across many lines rather than tending one. The count of workers falls while the residual work resists.", "plausibility": "already happening", "would_add": 4 }, { "dimension": "embodiment", "change": "Not a scoring lever so much as a floor: sanitizing tanks and blades between allergen or flavor changeovers, confined-space tank entry, hose hookups, and clearing caked material remain outside robot reach. Allergen-changeover cleaning validation requirements (FDA FALCPA, and the 2021 sesame addition) increase the share of the shift spent on non-automatable wet cleaning and swab verification.", "plausibility": "plausible", "would_add": 2 }, { "dimension": "judgment_accountability", "change": "If plants adopt operator authority to hold or reject a batch — a documented stop-batch right analogous to the andon cord, tied to cGMP deviation reporting — the role owns a consequential call rather than executing a recipe sheet. Some union contracts in food processing (UFCW, BCTGM) already contain food-safety stop-work language; broader adoption would move this.", "plausibility": "plausible", "would_add": 3 } ], "ceiling_note": "Trust premium has no realistic route: buyers of blended pigment, resin, dough, or premix never learn who ran the mixer and there is no consumer-facing artisan story to sell, unlike small-batch brewing or perfumery which sit under different SOC codes. Even with all levers, the shields available here are institutional (cGMP signatures, state manifests) rather than licensure — they follow the plant, not the person, so they can be reassigned to a QA technician at any time. Realistic ceiling is mid-50s, and it comes with a materially smaller headcount." }, "adjudication": null, "employment_history": { "points": [ { "y": 2017, "emp": 129490, "wage": 36600 }, { "y": 2018, "emp": 128600, "wage": 37210 }, { "y": 2019, "emp": 125340, "wage": 37780 }, { "y": 2020, "emp": 116190, "wage": 38690 }, { "y": 2021, "emp": 108440, "wage": 38420 }, { "y": 2022, "emp": 108900, "wage": 43410 }, { "y": 2023, "emp": 105740, "wage": 46100 }, { "y": 2024, "emp": 100840, "wage": 47680 }, { "y": 2025, "emp": 94920, "wage": 48990 } ], "from": 2017, "to": 2025, "change_pct": -26.7, "comparable_from": 2019, "spans_soc_revision": true }, "pivots": [ { "slug": "refractory-materials-repairers-except-brickmasons", "title": "Refractory Materials Repairers, Except Brickmasons", "verdict": "EXPOSED", "risk_resistance": 65, "median_wage": 61290, "overlap": 81, "skills_to_close": [ "Operations Analysis", "Equipment Selection" ] }, { "slug": "tank-car-truck-and-ship-loaders", "title": "Tank Car, Truck, and Ship Loaders", "verdict": "EXPOSED", "risk_resistance": 53, "median_wage": 58870, "overlap": 78, "skills_to_close": [ "Management of Personnel Resources", "Management of Financial Resources" ] }, { "slug": "loading-and-moving-machine-operators-underground-mining", "title": "Loading and Moving Machine Operators, Underground Mining", "verdict": "EXPOSED", "risk_resistance": 53, "median_wage": 74500, "overlap": 73, "skills_to_close": [ "Operations Analysis" ] } ], "license": "https://cookedindex.com/terms" }