Is this still sterile?

This is a tube of trypsin for detaching cells. Doesn't seem right to me but not sure if I'm just being paranoid. Even if I wipe it all off and spray a lot of ethanol, could it still get contaminated sitting in a freezer?

I know the simple solution would be to make smaller aliquots but unfortunately any such suggestion will be taken as criticism and cause excessive lab drama without solving the problem.

This is a tube of trypsin for detaching cells. Doesn't seem right to me but not sure if I'm just being paranoid. Even if I wipe it all off and spray a lot of ethanol, could it still get contaminated sitting in a freezer?

I know the simple solution would be to make smaller aliquots but unfortunately any such suggestion will be taken as criticism and cause excessive lab drama without solving the problem.