Per Xinhua Chongqing reported: formaldehyde is an industrial raw material. Generally speaking, people always focus on the interior decoration and furniture into the atmosphere of toxic gases. However, it has been found some bad suppliers take advantage of formaldehyde to be as a preservative and antiseptic for pig’s blood. The price of 1 ton formaldehyde is 1,600, it is cheaper. For obtaining higher benefits, some unscrupulous food producers in the water, use of formaldehyde as a food preservative, and some even flourishing in the production process by adding formaldehyde blood, reaching preservation effect. According to informed sources, the blood-wang added formaldehyde, not only shapes look good, but taste more bite, so popular in the market. Such industrial raw materials, the state prohibited the use of formaldehyde in foods.Some consumers .