by Thé Addict » Oct 2nd, '13, 00:00
It seems that the discussion has moved from the lid test (as originally mentioned) to the issue of lid fit.
I think most people would agree is that a decent lid fit is fairly important for a good brewing experience, but we don't have to determine how well the lid fits through the lid test, especially since I suppose very few vendors of Yixing teapots would allow us to perform the test before we buy the pots. We can, however, try some fairly easy and even obvious tests:
1. Turn the lid 360 degrees when it's on the pot to make sure that it's not too tight or obstructed.
2. Try to move the lid (e.g. left/right) when it's on the pot; when there is too much space for the lid to move, it is too loose. This could cause the water to be unable to stop flowing when we place out finger on the vent of the lid to stop the flow. (However, there are times when a slightly loose lid may still work to stop the water flow even. It's strange, but I have seen a vendor turn the lid 180 degrees and the flow-stoppage works.)
3. Ask to pour water out of the teapot. Personally, I have never seen a need to stop water flow, so I'm more concerned about dripping (from the lid or from the spout).
A vendor has also told me that we could observe factors like the ratio of sizes of the hole on each side of the lid vent (I can't remember the figures).
A teapot that passes the lid test may be good in terms of mechanics (e.g. the lid fits well), but it may not be well-constructed in terms of aesthetics. If an artist grinds an excessively tight lid till it fits well, the teapot may pass mechanical tests like the lid test, but it may not be evaluated well when it comes to artistic craft.
Should we ever make do with a pot with problems such as a loose lid? If the problem does not affect functionality too much (for one's personal brewing practices) and if there are positive traits that make the teapot unique (e.g. it is made using a depleted clay or has historical value), why not? But this has already been said ...
To answer Hmm's question in the original post, I don't have any teapots made by masters. But I have tested it on a few teapots that seem to pass the test, including one (supposedly) 80s-made shui ping, which is actually not all that well-constructed in some other ways. (It is possible to find fairly affordable teapots that pass the test)I also have one that fails the lid test, but the pour is quite smooth, and the lid does not feel loose. There is only a slight dripping problem when I pour out the tea too fast. Conclusion: The test may indeed reveal some things about a teapot, but it doesn't seem to reveal hidden secrets that I won't find out by examining the pot in safer ways.