If you stand it upright, you'll see some of it fall away from the inner walls of the bottle in small sheets. The color, even though stored in total darkness at about 52-58 degrees, seem very light through the green bottles.
Since grandma is gone now, what is the opinion on opening and using the wines inside.
I also have a few gallons of red Zinfandel that was stored in the whiskey barrel for 9-10 years and then we bottled some just to get the barrel out of the way. This stuff smells strong like a Marsala wine . This one is about 25 yrs old.
Looking for ways to determine safety, use and or longer term storage if viable.