Thank you @Muphy!

I keep mine for 6 months at least. The preparation gets drier with time but keeps its efficiency.

I'd love to be able to buy the raw materials in bulk but I need to find interested people living in my area. It's not that easy! For my household, I buy my cleaning materials only once a year.

I think people get more and more conscious of our negative impact on Nature. Unfortunately, the individual is not the most polluter on Earth. As the hummingbird, I carry my drop of water and try to convince others to do the same. Together, we can extinguish the fire!