https://www.maximizemarketresearch.com/market-report/global-precooked-corn-flour-market/112504/ Precooked Corn Flour also known as tangzhong or water roux is a type of flour manufactured by using dehulled and degerminated corn. Precooked Corn Flour is manufactured by introducing water and steam to the grounded form of corn at a high temperature. The Gelatinized form is then used as a dough for manufacturing functional, bakery, and confectionery food products.