2. Expired flour can be used to polish household stainless steel products. Household stainless steel products will lose their luster after a long time, and wiping with flour can help them improve their luster.
3. Although flour can't be eaten after expiration, it has adsorption effect and can be sprinkled on faucet, floor, desktop, pot, basin, stove and other greasy places. And these places can be cleaned by the adsorption function of flour.