I know what you are thinking: "What do these do??"
Well, if you have previously used liquid or powder detergent and fabric conditioner, there will most likely be a build-up in your machine pipes that may cause nasty odours.
Before using your Laundry Egg by EcoEgg - which does not contain harsh chemicals! - it is good to thoroughly clean your machine and that's when the detox tablets come in handy.