Dew is water condensed from the morning fog. Therefore it is theoretically distilled. However, remember that the collection surface may be contaminated in one way or another. The survivors of PT-109 learned this after licking wet leaves on their first landfall. Daylight revealed bird droppings on everything. Julia Butterfly collected water in the GALLONS daily from what must be the world's biggest dew collector. It still needed distilation from the oily soot of kerosene fires used to burn the remaining slash and understory from clearcuts. Still, the dry truth is tainted water is better than dying from dehydration if immediate need comes before the means to filter or sterilize. <img src="images/graemlins/tongue.gif" alt="" />