Hey everybody. I tried to clean my platy collapsible bottles with a few drops of dr bronners and the "shake it real hard up-and-down method". It was clean, but now there is a dry white residue on the inside of my bottles and it smells like mint. I have tried soaking them in water, drying them in the sun, drying them in the sun with water, shaking them violently with water, and so on. i can rub some out with a paper towel, but its impossible to get it all.
Someone please help! I don't want to buy new bottles and i don't want this to happen to someone else. How do you clean your platy bottles? Would a solvent work to remove this residue?

