Reviving new cans of balls that have been sitting too long

norcal

Legend
So a while back I got a case of Penn's on sale, they arrived and when I opened a couple cans they were 'soft'. Must have been sitting around in a warehouse forever. I hate using mushy balls and I'm not going to be 'that guy' bringing mushy balls to matches. Not worth the hassle to send back so I decided to keep them for my dogs.

Left a can unopened outside and forgot about it. I picked it up after it sat in the summer sun a couple days and noticed it was no longer 'soft', it felt highly pressurized. Opened it and it had the bounce and firmness of new balls. So I stuck the remaining cans in the sun on my gazebo. So far so good with opening 3 cans. 6 cans to go (only 1 still feels soft - you can easily touch the balls when you squeeze the can).

Anyway, thought I would pass along the tip for you guys who have a bunch of new/old balls sitting in the closet - your tennis buddies will thank me lol.
 

Ronaldo

Bionic Poster
So a while back I got a case of Penn's on sale, they arrived and when I opened a couple cans they were 'soft'. Must have been sitting around in a warehouse forever. I hate using mushy balls and I'm not going to be 'that guy' bringing mushy balls to matches. Not worth the hassle to send back so I decided to keep them for my dogs.

Left a can unopened outside and forgot about it. I picked it up after it sat in the summer sun a couple days and noticed it was no longer 'soft', it felt highly pressurized. Opened it and it had the bounce and firmness of new balls. So I stuck the remaining cans in the sun on my gazebo. So far so good with opening 3 cans. 6 cans to go (only 1 still feels soft - you can easily touch the balls when you squeeze the can).

Anyway, thought I would pass along the tip for you guys who have a bunch of new/old balls sitting in the closet - your tennis buddies will thank me lol.
Keep your balls on the topshelf of the closet. Topshelf balls are always firm, not soft
 

Tennisist

Semi-Pro
It is interesting how ball manufacturers claim to produce balls to account for altitude variations and surface hardness, yet do not account for obvious temperature fluctuations between 65°F and 92°F. And those are incommensurate! The balls you bought were probably meant for Florida....
 
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