Rubber Trees

This is a rubber tree farm. All of the trees have little bowls attached to them to collect the rubber. Small incisions are cut into the trees’ bark at night so that latex sap will drip longer before drying out in the tropical sun. Workers collect the tapped latex the following morning. Progressively lower cuts are made in the rubber trees, allowing them to be tapped for many years.
After sufficient amounts are collected, basins of latex are processed with an acid to coagulate it, making the latex more solid. The acid is then removed by rolling the latex under pressure into thin sheets, which are smoked over a fire to stabilize the rubber. In that form the rubber can be exported.