> I never wash new bags,
Do you realize how many chemicals are in new clothing and new cloth materials? They have surrounded us with poisons in all areas of our lives. These include carcinogens in brand new clothing that need washed out.
Some of those chemicals protect the sleeping bag. I want to keep them adhered as long as possible.
I did search about this and consensus is to not to wash the bags. They are expensive and if you want them to last as long as possible you should wash them as little as possible.