No matter how careful you are, once your bin has been handled along with everyone else's and has been lifted and empted into the waste truck you get cross contamination with other bins. Therefore having your bin cleaned once it has been emptied will help eliminate this problem.
Until now, the cleaning, disinfecting and deodorising of wheelie bins has not been readily available and near impossible if not dangerous to do it yourself so let us do it for you. Because the plastic of the wheelie bin is porous it absorbs the odour caused by the germs and bacteria and this is why just hosing out your wheelie bin does not eliminate the smell, not to mention the water you have wasted.