The most authentic one is the hillbilly brand.

Because the earliest manufacturer of this type of braised food in Cangnan County used the name "hillbilly", everyone followed suit. Over time, "hillbilly" has almost become synonymous with locally produced braised cooked food.

Hillbilly is a trademark applied by Zhejiang Hefeng Food Co., Ltd. in the Trademark Office of the State Intellectual Property Office on March 2, 2001. The goods and services with registration number 2018092 mainly include: chicken, chicken legs, chicken wings, eggs, chicken feet, beef, pork, dried five-spice, etc.

The goods and services with registration number 15631752 mainly include: dried meat; fish products; dairy products; processed nuts; ham; poultry (non-live); fruit salad; eggs; tofu products; pickled Vegetables, etc.

From March 2001 to August 2020, Zhejiang Hefeng Food Co., Ltd. has registered 7 trademarks called Hillbilly.