 Orosa wanted to help the Philippines become self-sufficient, as well as empower Filipino families.She organized 4-H clubs in the islands (which had more than 22,000 members by 1924), and traveled into the barrios to teach women how to raise chickens, preserve local produce, and plan healthy meals.Orosa invented the palayok oven to enable families without access to electricity to bake, and developed recipes for local produce, including cassava, bananas, and coconut.