Household waste is one of the most crucial problems nowadays. In big cities, waste is a significant problem that is still difficult to solve. Based on the type of waste itself, it is divided into two parts: organic waste, which can be decomposed with the help of micro-organisms, and inorganic waste, which cannot be decomposed naturally.

Gunungkidul has the potential of abundant food sources. One of them is cassava which grows well in Tepus, Gunungkidul. Many  Tepus residents process cassava into patilo. But, unfortunately, the production and marketing activities are still on a traditional scale, so they only reach a limited market.