From NetEase:

Noodle restaurant uses “beef extract” additive to turn pork into beef in 90 minutes

Summary: Recently, the Hefei department of industry and commerce discovered a “beef extract” additive circulating widely on the market, allowing for chicken meat to be come “beef”. A city resident revealed that this “beef extract” is not only used in the production of meat floss, it is also used a “public secret” in some small eateries, with government departments claiming that if this is true, they will investigate. Doctors say long-term use of additives can cause slow poisoning, deformity, and even cancer.

From Mop, NetEase, & Hainan News:

Business uses beef extract and glazing agent to turn pork into beef in 90 minutes

2011 April 12th, Hefei, this reporter verifies the 90 minute process of changing pork into beef.

From NetEase:

Process of turning pork into “beef” by adding beef extract exposed

Recently, Anhui, Jiangxi, Fujian, and other places have been exposed by the media who have discovered a kind of “beef extract” additive that allows pork to become “beef”.

See also: “More food fakes: Beef in Shanghai might be pork?” (Shanghaiist)

Comments from NetEase:

网易上海市网友:

MLGB, is there anything that can still be eaten?

网易辽宁省大连市网友:

With pork and beef both having problems, is anyone asking how mutton is doing?

Let me tell you, there are different price levels for mutton sold on the market, with the cheap mutton being pork, fox meat (leftover from those selling fur), and other discarded/unused meat, soaked in sheep urine (to increase the mutton flavor/aroma) then cut into pieces, sold to the markets. This has all been exposed on television before, netizens.

网易陕西省网友:

Chinese are the world leaders in creating counterfeits/fakes!

网易湖北省武汉市网友:

Author, are you teaching us how to use beef extract?

网易辽宁省网友:

Never say that China doesn’t have indigenous innovation, because in the field of food products, [China] can produce endless creations. In the future, there will be no need to guess every day how you will die, instead you can guess every day just what exactly you are eating, and if you can guess then you’re impressive.

网易山东省临沂市网友:

This is one that is known, but what about those we don’t know about?

Sigh, the direction of society’s development is truly unimaginable.

网易广东省肇庆市网友:

A NetEase how-to post!!! I’ve learned something.

网易上海市网友:

This kind of trick is already considered civilized [not that bad], there’s also using sodium borate to turn pork into beef, and 15 grams of sodium borate can kill you (for children, just a few grams). To think that I used to often order hao you niu rou [a well-known beef dish] when going to small restaurants, I’m filled with dread…

网易广东省网友:

A crazy nation, does crazy things.

网易北京市朝阳区网友:

Anyway, this kind of thing isn’t something that has just come out recently, it’s been ten or eight years now, I’m just waiting for the rabble to become immune to all poisons.

网易宁夏银川市网友:

China’s government officials are all blind, stupid, idiots! What fucking use their daily meetings are!

网易湖南省常德市网友:

Morally bankrupt countrymen, for thousands of years China has not been like this [until now], disappointing.

网易河南省洛阳市网友:

The fifth great invention contributed to the world by Chinese.

Beef. Personals @ chinaSMACK.