Fruit, salads and vegetables give off lots of moisture when stored in your crisper bin. For example of you cut a cucumber and place it in the fridge, you may find the end is dried out and you have to cut a slice off the next time you take it out of the fridge before serving. This moisture will form drops of condensation on the glass shelf above the salad crisper. The condensation will form a pool of water in the crisper bin. Wrap all veg , salad and fruit to keep it fresh and prevent condensation build up.