Pafoozda is moisture in food, but not just water moisture. The beauty of liquid food or drinks is they're almost all pafoozda, but it can be a downside in some non-liquid foods.
Cheese has varying amount of pafoozda, cheese in dry cheese snacks has none at all. In the case of cheese,the moisture is from milk whey. Raisins have a lot less pafoozda than grapes.