It means it contains more water.
The root word for moister is "moist."
The adjective "moister" means more moist (e.g. a moister environment).Similar words include the nouns moisture (liquid water) and monster (creature).
Applesauce will make a moister cake.
water
Humidity
Both "more moist" and "moister" appear to be accepted, though "moister" sounds much like "moisture".
* Moister * Roister * Boister
Because it was moister
moister, moistest
it happens because what ever item you have in the bag has/had moister in it so after time the moister tries to evaporate but it cant because of the bag so it turns into condensation
they dont they get all the moister they need out of the blood
mostly in places where there is a lot of moister.