For the one looking for a low-tech alternative to rinse aids: white vinegar does wonders. You can easily get it food grade as it is used to make preserves. Simi

For the one looking for a low-tech alternative to rinse aids: white vinegar does wonders. You can easily get it food grade as it is used to make preserves. Similarly it can be used as a softener for washing clothes. The cherry on top: it's cheap!