I'm sniffing around on TaoBao and came across a 2000 Menghai ripe grade-a tuocha which was blue! So do they oxygen deprive the beasties to make the color? I've run across over descriptions where Ripe is described as Blue but never without the wrapper. Waaah I want some. The most expensive item auction yet is 70000 Yuan for the only 84 gourds from Menghai factory in 1995.
Jim