I noticed a similar thing with regular Coca Cola years ago. Some PET 2 l bottles went stale and tasted terribly, like mold. Other people thought that it wasn't so bad, but did detect the bad taste after being told about it.
I suspected it was an effect of sunlight on sugar, but had no way to know for sure. Nobody would admit that the bottles were transported or stored in inadequate conditions either.
Then I quit regular coke and later diet coke too, so no idea if it's still a problem.
I suspected it was an effect of sunlight on sugar, but had no way to know for sure. Nobody would admit that the bottles were transported or stored in inadequate conditions either.
Then I quit regular coke and later diet coke too, so no idea if it's still a problem.