Can sublimation mugs go out of date?

[Simong12]

Having a sort out today and I found a box of sublimation mugs in loft, I knew I had had box missing, can't remember where I had them from but I know it brought them nearly 12 months ago. Would they be ok to use?
I only do mugs as hobby and gifts so I wouldn't sell them, thought us them or bin them don't want to use and waste ink, time, paper, if they wouldn't sublimate right?

[ArferMo]

No they have no expiry date.

[Paul]

you wouldn't use much would you? check one mug if it prints ok and if not you not going try again will you?

I bought few boxes that are 6y old and print lovely. so iam sure you will be ok woth your 1y old ones

all the best

[Simong12]

Cheers guys, I will give them a try.