Someone has called them an oddity of Nature, someone else a gift: they are the galls, or cecidia, swelling growths that characterize some trees, particularly oaks. They are very common in the plant kingdom and very rich in tannins. They generally have an irregular...
Tannin is a natural extract, known since antiquity, but at the centre of attention in recent years. Like all extracts, it must undergo an extraction process to be used. This term calls to mind laboratories and scientists, mathematical calculations and the latest...
Among all plants and trees, the Oak is perhaps the species that has left the deepest imprint in Western culture and collective imagination. It’s present in many ancient mythologies as a symbol of strength and justice, often associated with the divinities that embody...
“The Chestnut Trees at Osny”, Camille Pisarro, 1873 The Chestnut is one of the most important natural raw materials used for the extraction of tannin. This tree is widespread among the hilly areas...
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