We are aware that both soil and climate have fundamental effects in the physical and chemical composion of a tree.
Having this as a reference, during the act of buying, we demand our suppliers, wood from the regions of: ALLIER, NEVERS E LIMOSAN (FRS), MISSOURI E KENTUCKY (US), Northern Portugal, Hungary and Romania.

Botanical origin: Quercus Petraea or Sessiliflora, Quercus Alba and Quercus Robur.