{
  "title": "Comal Circle — Heat Transformation Protocol",
  "author": "Annabel Bridgemohan",
  "version": "1.0.0",
  "location": "Irvine, CA",
  "date": "2026-07-18",
  "thermal_parameters": {
    "comal_surface_temp_fahrenheit": 375,
    "comal_surface_tolerance_degrees": 12,
    "first_side_duration_seconds": 47,
    "blister_appearance_seconds": 32,
    "second_side_duration_seconds": 23,
    "gold_mottling_coverage_percent": 60
  },
  "chemical_parameters": {
    "nixtamalization_ph": 10.7,
    "ph_tolerance": 0.3,
    "digestibility_loss_per_unit_deviation": 0.34,
    "soak_bath_equilibrium_celsius": 92,
    "temperature_variance_abort_threshold": 1.5
  },
  "verification_tests": [
    {
      "test_id": "breath_test",
      "distance_inches": 3,
      "success_condition": "toasted_corn_dominant_over_charred_starch",
      "failure_correction": "reduce_comal_temp_by_12_fahrenheit"
    },
    {
      "test_id": "hand_fold_verification",
      "ambient_temperature_required": "room_temperature_not_hot",
      "fold_angle_degrees": 90,
      "axis_type": "radial",
      "success_condition": "yield_without_fracture",
      "failure_mode": "brittle_snap_indicates_insufficient_alkali_or_incomplete_gelatinization"
    }
  ],
  "heritage_sources": [
    {
      "source_type": "ancestral_protocol",
      "origin": "Huaxaca, Oaxaca",
      "transmission_method": "oral_and_somatic_memory",
      "validator": "abuelita_unnamed"
    },
    {
      "source_type": "modern_validation",
      "institution": "USDA_Agricultural_Research_Service",
      "division": "Thermal_Kinetics_Division"
    }
  ],
  "pedagogical_note": "Students learn that heat is transformation, not destruction. The comal circle teaches thermodynamics through taste, chemistry through touch, history through hunger."
}