Sulfur Miners

The sulfur mining operation at Kawah Ijen has continued for generations, making it one of the most gruelling manual labour sites still operating in Indonesia. Around 200 miners descend into the active crater daily to chip solidified sulphur from the cooling lava channels below the vents, load it into bamboo baskets, and carry it out. A full load weighs 70–90 kilograms; miners earn roughly 1,000 rupiah per kilogram at the weighing station — around USD 13 for a full basket, on a day that typically begins at midnight or 2am.

The working conditions are genuinely hazardous. Sulphuric acid vapour causes chronic respiratory damage; most miners develop lung problems over years of exposure. The path between crater floor and rim is steep and slippery, with no guardrails. Yet the miners are often willing to show visitors the operation, pose for photographs, and discuss their work. Meeting them in the dark crater, carrying lanterns and enormous loads through sulphuric fog while visitors hike with their camera bags, is an encounter that stays with you.

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The sulfur miners of Ijen carry loads of 70–90 kilograms in bamboo baskets balanced across their shoulders — up a 300-metre climb from the crater floor to the rim, then 3 kilometres downhill to the weighing station. Many make two trips per day. On a single day's work, a miner might carry the equivalent of a small motorbike up a near-vertical slope through toxic fumes while breathing through a damp cloth. The sulphur is used in matches, fertiliser, pharmaceuticals, and the vulcanisation of rubber — industries that benefit from a process most of their customers will never think about.

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