... instant noodles, noodles, rice powder noodles, soy products, beef jerky, preserved meat, dried fish ,tea, tobacco and so ... dust, bacteria was decreased. However, there are three big problems in it. First: taking long time to ... the different factories such as spiced beef, curry dried beef, spicy dried beef and so on. There are ... used to dry it, the power should be big, a lot of money should be invested. ...