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mike wrennI have had them in a closet for about 10 years.
Temp usually 60-75 in house year round
AC is on 70 degrees in the summer in the room where ball are stored in the evening during the day it's probably 70-75 degrees in the room.
Humidity is not a problem.
There is carpet in the closet that the balls are stored in and closet is dark and dry
The windows are cracked about 2 inches max
How have your baseballs fared over the years with the storage techniques that you have used. Are any yellow/brown all over or spotty with yellowing or browning. Thanks for the info.