A worker bends down in an empty tofu factory during a protest in Jakarta July 25, 2012. Producers of tofu and tempe are on a three-day strike starting Wednesday to protest against rising soybean prices. Indonesians on Wednesday can hardly find tempe, or fermented soybean cake, in the markets as the prices of soybean, the main ingredient in the traditional food, has increased to an unprecedented level, Antara news agency reported. REUTERS/Supri (INDONESIA - Tags: BUSINESS FOOD)