I bought this to put in my fridge as an EMF protector for my food. I read an article where they experimented storing a strawberry in the fridge and one outside of the fridge with shungite. The strawberry on the shungite was still perfect after 3 days while the fridge strawberry grew mold. I have had this in the fridge for about 2 weeks now and I can verify that it works! My straberries and leafy greens would get wilted and moldy after just a few days. My strawberries have been in the fridge for almost a week now and not a spot of mold! My parsley and cilantro still look as if I bought them today! Best purchase ever!