Materials should look like themselves.

Hefta is a one-person studio in Warsaw casting small runs of concrete objects for desks, tables and shelves. Every piece is poured, demoulded, cured, finished and numbered by the same pair of hands.

One base mix carries every colour — cement, fine marble sand, mineral pigment — and only the pigment changes between them. Holding the matrix constant means the colours behave the same way as they cure, and nothing moves against itself later.

Nothing is laid over the surface. A penetrating sealer goes in rather than on, followed by wax buffed back by hand, so the concrete stays matte and breathable. Pores, flecks and small shifts in tone are left alone. They record how one pour behaved, and no two behave alike.