The Steamer Runs at 100°C. The Labor Code Never Set a Ceiling for the Room Around It.
General Santos cannery workers clean tuna in heat that has no legal limit, because Philippine labor law wrote hours into every contract but never a temperature.
Walk onto a General Santos cannery floor at noon and the air does the arguing for you. Steam retorts run near boiling, the exhaust fans push hot air in circles, and the workers gutting yellowfin have gloves, hairnets, and rubber boots but no number on any wall telling their employer when the room gets dangerous.
That number does not exist in Philippine law. The Labor Code counts hours, rest days, and night differentials. It stays silent on how hot a workplace can get before someone has to intervene. So the heat rides free, unwritten into every contract, unpriced into every shift.
The gap is the whole story
Occupational safety rules require employers to provide a safe workplace, but "safe" gets defined by inspection and interpretation, not a thermostat. There is no enforceable ceiling that says: at this temperature, cooling kicks in, or the line slows, or the shift shortens with pay intact.
Compare that to hours. Go past eight and overtime is owed, in pesos, on the payslip. The bargain is legible. Heat has no such line. A worker who feels faint has no clause to point to, only a supervisor's mood and a quota that does not care about the wet-bulb reading.
General Santos processes a large share of the country's tuna for export. The cans that clear customs for Bangkok, Tokyo, and the EU carry sanitary certificates, weight checks, and traceability logs. The one thing the paperwork never records is the temperature the packers stood in while filling them.
Who absorbs it
The floor absorbs it. Line workers, many on short contracts renewed season to season, take extra salt, extra water, and the risk of collapse as part of the job description nobody wrote down. Cramps and dizziness get logged as personal weakness, not as a hazard the workplace produced.
Climate makes the silence heavier every year. Mindanao heat indices now push into the danger range for weeks at a stretch. A room that ran uncomfortable a decade ago runs closer to hazardous today, and the legal text has not moved a degree to meet it.
Labor advocates have pushed for a heat standard tied to occupational safety law, something that would force cooling, hydration breaks, and rotation once a threshold is crossed. Employers warn about cost and throughput. The cannery runs on volume, and volume runs on bodies moving fast in a hot room.
What a number would buy
A written temperature limit would do for heat what the eight-hour rule did for time. It would give a worker a clause instead of a plea. It would put the cost of cooling on the company that runs the retorts, not on the packer who buys her own electrolyte sachets at the sari-sari store outside the gate.
Until that line exists, the contract stays half-blank. It promises a wage, a shift, a rest day. It never promises the room will stay survivable. In General Santos, that promise is the one the tuna trade quietly leaves off the page, and the people cleaning the fish are the ones paying for the omission in sweat and salt.
