Vietnamese fermented pork roll (nem chua) is a meat roll with a sweet, sour, salty and spicy taste which makes the mouth salivates with each bite. vietnamese fermented pork roll possesses the local character of each region of vietnam, due to the differing ingredients and sauces used. it is the reason why it becomes the traditional vietnamese food. most versions of vietnamese fermented pork roll can be distinguished by their name, which is usually named after the area it originated from, such as thanh hoa, dong ba fermented pork roll in the ancient royal capital of hue, and ninh hoa fermented pork roll in khanh hoa province, yen mac fermented pork roll in ninh binh province, etc.
Answer the questions:
1. What is main ingredient of this traditinal Vietnamese Food?
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2. How long do we keep the fermented pork rolls in a cool place before eating?
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