Description
A mix of 4 different clays is used, to ensure the best absorption ratio for humidifying dried tobacco/herbs.
SGS Tested & Food Grade :
The Hydrostone is 100% natural, is SGS tested, and have all the necessary EU and FDA certificates as a food grade product. (meaning the hydrostone can be in direct contact with foods, a.o. tobacco)
The Hydrostone has also been viguurously tested by university KU Leuven, Belgium – Chulalongkorn University Bangkok, Thailand – Chemiphar Belgium
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