Formerly there was no special emphasis on red-yolk eggs in Checheng, but when Pan returned 17 years ago to carry on his father's duck egg business, he began using this feature to establish his brand identity. He renamed his products "Pan family farm red-yolk eggs," and other egg farmers began to follow suit.
原本車城的鴨蛋並未特意強調「紅仁」，也不是主力特產，潘旭煌 17 年前返鄉接下父親的蛋鴨場，為了建立行銷品牌，便取名為潘氏農場「紅仁鴨蛋」，其他鴨農也跟進沿用。