Olive oil is part of our DNA,” says the Madrid-based designer Jorge Penadés, who grew up in the Andalusian city of Málaga, one of the world’s leading suppliers. “You see it in the food, the culture, the landscape.” When he learned that many native trees, which grow in clusters, were being uprooted to accommodate contemporary harvesting equipment, he wondered how to make use of the sacrificed plants—and particularly their root systems which, often bigger than trunks and branches, were being sold as firewood.
“Technically and aesthetically, they have really nice properties,” Penadés says of the dense hunks, many of them more than 100 years old, that he now buys, dries, and slices into slabs. Since roots often grow around small stones, he initially struggled to find carpenters willing to risk…
