Tannins and human health: a review. Chung KT, Wong TY, Wei CI, Huang YW, Lin Y. Department of Microbiology and Molecular Cell Sciences, University of Memphis, TN 38152, USA. Tannins (commonly referred to as tannic acid) are water-soluble polyphenols that are present in many plant foods.
How to Cast Jewelry. Jewelry casting is a process of making jewelry pieces that involves the pouring of liquid metal alloy into a mold. It is usually referred to as lost-wax casting because the casting mold is created using a wax model that is melted away to leave a hollow chamber in the middle of the mold.
Hopefully these tips will help you as you navigate the tricky waters of fake pins. Unfortunately, the majority of pins on cast lanyards are fakes and scrappers, but any pin you purchase from a Disney store is definitely not fake â even if it has some dimples or rough edges. Those are simply ones that somehow got past the screening process, but they are authentic.