I have been noticeing on some of my older bottles of wine espeacially
on the clear glass bottles that there is a bit of blueish gray color
between the cork and bottle neck.. My wines are sulfited and I'm not
really noticeing any off tastes in the wine yet, but am concerned...
These are some heavier fruit wines that have been in the bottles for 3
full years and are really starting to get good... Any advice,
sugestions, preventative measures welcome...