Zhou's roast duck is very particular about seasoning and cooking. More than ten kinds of traditional Chinese medicines such as clove, osmanthus fragrans, Gan Song and fennel, and seven kinds of seasonings such as yellow wine, onion and ginger are used in the production, which can be used continuously for decades and will not deteriorate in dog days (there is a stew pot in Zhoushi Town, which has been used for more than 30 years). Cooked duck is fat but not greasy, fresh and tender to the bone, especially suitable for the elderly and infirm to eat after illness, which can play a role in invigorating spleen and appetizing. Aozao Pavilion, a century-old noodle shop in Kunshan, is also thriving here.