I had the idea to check out google.cn today to see if I could find a lamian recipe. Well, I found video of a cooking show in which it looks like they explain… everything? I’m not sure, but there’s information about alkali in there. I can’t read it, however. I’ll have to get some translation done.
The website is http://www.zuiya.com/play-2047.html.
Here’s some screenshots of particular importance. I need to call my chinese friends to see who can read it