Dishwasher Stays Wet Inside . It was only around 7 years. It starts by taking the time to place all of the plastic dishes on the top rack of the dishwasher. Inside Of As Dishwasher Containing Dirty Dishes RoyaltyFree Stock from cartoondealer.com Beside this, why is the inside of my dishwasher always wet? The water temperatures get much hotter if they are placed on the bottom rack, which will contribute to the increase in drying times. Ensure there's enough space between dishware and cutlery when loading the dishwasher.