Regeneration International

At the height of summer, chef Rob Rubba and his team at Oyster Oyster, a vegetable-first restaurant in Washington, D.C., are preparing for the dwindling of food in the coming winter. It’s a tedious but worthwhile process: drying mushrooms, vegetables, and herbs, making pickles and slaw, and preserving garlic blossoms and coriander seeds in airtight jars before these ingredients vanish with the end of the season.