Torched, not stained
Brasa is black because it was burned, not because it was coated. The finished table goes back under the flame until the surface carbonizes, then it is brushed back and sealed. Nothing is added to change the color — the color is what the wood becomes.
The two surfaces take it differently, which is the point. The flat top, sanded smooth before burning, holds a matte black that still reads its grain when the light rakes across it. The live edge, softer and open-pored, burns deeper and cracks into the glossy alligatored char you can see below. On a Guanacaste slab, where the sapwood is pale and the heartwood dark, the torch erases that contrast and leaves only the form.