In my first entry about this subject, I mentioned Teaparker's trick: looking at the bamboo wrapper and see if it looks as old as the puer is supposed to be. Today, I see that Teaparker has posted the picture I mentioned of a 100 year old puer bing in its original bamboo leave. Compare it with the other young bamboo leaves and you'll see a big difference.
I live in Taiwan since 1996 and have been studying tea with Teaparker. He's a worldwide tea expert and author of over 30 tea books. The study of tea isn't just theoretical, but it's also rooted in daily practice. It's a path of continuous improvement. As my brewing technique improves I get access to better teas and better accessories. These things go hand in hand. My blog documents my learning since 2004. And I have set up an online tea boutique with my selection of top quality teas, accessories and tea culture.