Oak Gall Powder Tannin | Green

Name: Green Oak Gall Powder Tannin Scientific Name: Quercus Infectoria Oak Gallnut is one of the best tannin sources that you can use in natural dyeing in the mordanting process.  It is favored by natural dyers as it does not impart a strong colour to the fabric by itself.  Oak gallnut powder helps you to create very sharp shades of any color by assisting a mordant to bind to cellulose fibers.   How oak gallnut powder is produced: Here at themazi, we collect the gallnuts from our oak forests in summer. The gallnuts are made by a type of wasp, and act as protection for the wasp larvae until they hatch, so we harvest at the right time of year to allow the life cycle of the wasp to be complete.  To make doubly sure all the insects have left the galls, once picked, the gallnuts are left outside for at least two months before grinding and packaging.   How to use oak gallnut powder as a Mordant in Natural Dyeing: Oak galls are high in tannin and are usually used to treat cellulose