In a small Indonesian village on Java Island, tofu production has taken on a new role — by using its waste water to produce biogas, it’s now cutting costs, preserving energy and protecting the environment. Kalisari village, which now has over 240 tofu workshops, recently became the experimental ground for Indonesia’s Agency for the Assessment and Application of Technology (BPPT), which is pioneering the project. “Now, as a bonus, the tofu is also a source […]