There is no difference, Simla noodles are instant noodles.

Introduction:

Sin ramen is an instant noodle produced by Shanghai Nongshim Foods Co., Ltd. which is wholly owned by South Korea. The first packet of Sin ramen was born in South Korea in 1986, and it was first introduced to the Chinese market in 1998. Since the birth of Sim Ramen until now, Sim Ramen has been packaged in bags, five packets, cups and large bowls of noodles in four specifications.

Before the invention of instant noodles, there was a similar noodle dish called "I-men" or "Ifu-men" in China. Ando Momofuku combined traditional noodles and ramen, added some cooking oil, and dehydrated them to turn them into instant noodles.

Expanded Information

Instant noodles are popular among consumers at different levels due to their ready-to-eat nature and affordability. Instant noodles according to the production process is divided into two categories, one is fried instant noodles, that is, the cake through the frying and drying process; the second is hot air drying instant noodles, that is, the cake through the hot air drying process.

In South Korea, troop pots have also utilized instant noodles as an ingredient. Although instant noodles are designed to be eaten after brewing, some people eat them directly without brewing, such as certain brands of instant noodles in Taiwan, such as "Prince Noodle" and "Science Noodle". In Taiwan, instant noodles are sometimes used by food vendors as one of the ingredients. Most Internet cafes and some food stalls will cook instant noodles with vegetables and add eggs to serve customers.

Baidu Encyclopedia - Noodles