If you need dish detergent (not soap....there is a difference) use un-scented Dawn. It's used to clean critters that wander into oil spills. It's pretty inert stuff but ANY surfectant in wild water can break down mucus layers in aquatic life and cause all sorts of problems. I usually don't cook but when I do I'll use boil-in-bags that get hauled back out. No cleaning/detergent needed. A drop of Bronners or Dawn for my hands IF really needed. 200ft. from water is a good distance for camp washing.