Need a little info....had a DOT urine test today...which I subbed for. I used a bottle that was originally a travel size mouthwash bottle....rinsed it out and added a little dish detergent (to clean out the mouthwash mint smell) with water and let it sit for 2 days....I thoroughly rinsed the detergent out and continuously rain water in it until I could not smell any thing in the bottle. I added the clean drug free urine to the bottle....put it in my underwear and everything went great at the drug testing sight. Once I got home I opened the bottle and could smell urine and a slight detergent smell....I know that there was no actual detergent in it but the fact that I can smell it a little worries me. From what I understand there is 5 things the DOT will test for THC, Cocaine, etc. The urine was clean looking and smelled like urine in the specimen cup. Is it possible for them to find the detergent at the lab? The smell of the bottle is bothering me....when you run water in it and smell it right away it has no smell...however after it sits a few min when you check the smell again it has that faint soap smell.....Any ideas....burnt toast???