Complicating their efforts was the fact that the U.S. Food and Drug Administration has not included Utah on a list of states where the recalled candy, as well as tainted instant coffee and milk tea, are sold.

Federal regulators have warned consumers not to consume White Rabbit Creamy Candy and seven Mr. Brown instant coffee and milk tea products.

The products have been found in Asian food markets in Utah and samples are being sent to Denver for testing, said Doug Peterson of the Utah Department of Agriculture and Food.

The state asked stores to pull the products off their shelves, Peterson said. But a spot check of some Asian food stores in Salt Lake County turned up bags of the candy still for sale.

"People should destroy the products if they have them or if they have a good relationship with the people where they bought it, they should return the products and ask for a refund," he said.

The products have been recalled because they were made with milk products suspected of being contaminated with melamine, an industrial chemical blamed for sickening thousands of infants in China.

No illnesses have been reported in the United States.

In the past, Chinese milk suppliers have added melamine because it contains nitrogen that can fool tests aimed at verifying protein levels. The chemical, used in plastics and fertilizers, can cause kidney stones, which can lead to kidney failure.

The recalled products are Mr. Brown instant coffee, including its Mandheling, Arabica, Blue Mountain, Caramel Macchiato, French Vanilla flavors, and Milk Tea. Canned Mr. Brown Coffee products are not affected by the recall.

The White Rabbit Creamy Candy is sold in 8 or 16 ounce packages. All other flavors of White Rabbit Candy, including Assorted (chocolate, coconut and coffee), Red Bean, Coffee, Corn, Lychee, Mango and Strawberry are sold in 7 ounce packages. All packaging has a logo of a white rabbit on the front with the words "White Rabbit."

On Wednesday, the Chinese government identified 15 more dairy companies as producing milk products contaminated with melamine, bringing the total to 20 firms.

No Chinese manufacturers of infant formula have fulfilled the requirements to sell infant formula in the United States. But the FDA is investigating whether formula manufactured in China is being sold in specialty markets that serve the Asian community, FDA specialist Judy Leon said in a statement.

Last year, melamine from a Chinese manufacturer showed up in U.S. pet food that sickened dogs and cats. More than 100 pet food brands were recalled, including some varieties manufactured by Ogden-based American Nutrition Inc. The Chinese-made chemical also found its way to feed for millions of chickens and hogs sent to the U.S. marketplace and in fish released into the wild.