To optimize the use of biodigesters in urban areas, selective collection requires a modification in the waste pickup route to collect specific materials. This process could take years and is greatly related to culture. For projects to be successful, optimal markets like central supply centers and restaurant areas should be identified first as they generate large amounts of organic waste. There would have to be campaigns to teach local citizens how to separate waste. The main objective is that people embrace these customs and become aware of what biodigesters can offer their communities. Approximately 80 percent of the components for our Milpa Alta plant were manufactured in Mexico and only the extremely specialized pieces that could not be found in Mexico were imported.