China Mist Leaves Pure Teas Whole-Leaf Loose Teas provide the perfect tea for any occasion.  Try our flavorful whole leaf loose oolong tea. All our loose oolong teas are Certified Kosher by the Kosher Supervision of America, and Certified Halal by the Islamic Food and Nutrition Council of America. Our Oolong Teas include Chrysanthemum Oolong, and Yellow Jade Oolong.