That's because liquor is a finished product, there is a market price outside, the price of food and beverage stores can not be too much higher than the market price, that is, the profit margin is not very high, so generally do not discount. The dishes into the ingredients, need to be processed into finished products, and each restaurant even if the same dishes due to the chef's skills are different, the taste will also vary greatly, which has a lot of profit space, generally reach the consumption of ingredients and other more than double.