At first, Chinese officials denied even shipping wheat gluten to the US in the first place, though it has since come to light that despite America being one of the world's largest wheat producers, companies here find it cheaper to import gluten--which requires a certain amount of labor and processing of the grain--from China. This weekend, however, New York Times writer David Barboza, reporting from Zhangqiu, found numerous grain and food-processing workers and management willing to talk about what must seem like old news to them--namely, that adding melamine to grain products in order to boost protein-content readings (and market price) is a common practice in China:
ZHANGQIU, China, April 28 — As American food safety regulators head to China to investigate how a chemical made from coal found its way into pet food that killed dogs and cats in the United States, workers in this heavily polluted northern city openly admit that the substance is routinely added to animal feed as a fake protein.
For years, producers of animal feed all over China have secretly supplemented their feed with the substance, called melamine, a cheap additive that looks like protein in tests, even though it does not provide any nutritional benefits, according to melamine scrap traders and agricultural workers here.
“Many companies buy melamine scrap to make animal feed, such as fish feed,” said Ji Denghui, general manager of the Fujian Sanming Dinghui Chemical Company, which sells melamine. “I don’t know if there’s a regulation on it. Probably not. No law or regulation says ‘don’t do it,’ so everyone’s doing it. The laws in China are like that, aren’t they? If there’s no accident, there won’t be any regulation.”
Last Friday here in Zhangqiu, a fast-growing industrial city southeast of Beijing, two animal feed producers explained in great detail how they purchase low-grade wheat, corn, soybean or other proteins and then mix in small portions of nitrogen-rich melamine scrap, whose chemical properties help the feed register an inflated protein level.
Melamine is the new scam of choice, they say, because urea — another nitrogen-rich chemical — is illegal for use in pig and poultry feed and can be easily detected in China as well as in the United States.
“People use melamine scrap to boost nitrogen levels for the tests,” said the manager of the animal feed factory. “If you add it in small quantities, it won’t hurt the animals.”
The manager, who works at a small animal feed operation here that consists of a handful of storage and mixing areas, said he has mixed melamine scrap into animal feed for years.
He said he was not currently using melamine. But he then pulled out a plastic bag containing what he said was melamine powder and said he could dye it any color to match the right feed stock.
He said that melamine used in pet food would probably not be harmful. “Pets are not like pigs or chickens,” he said casually, explaining that they can afford to eat less protein. “They don’t need to grow fast.”
The resulting melamine-tainted feed would be weak in protein, he acknowledged, which means the feed is less nutritious.
But, by using the melamine additive, the feed seller makes a heftier profit because melamine scrap is much cheaper than soy, wheat or corn protein.
“It’s true you can make a lot more profit by putting melamine in,” said another animal feed seller here in Zhangqiu. “Melamine will cost you about $1.20 for each protein count per ton whereas real protein costs you about $6, so you can see the difference.”