H&H Mortaio: 18 cm white marble mortar with pestle

Almost everything that comes off a kamado is finished by hand. The tomatoes and the head of garlic roast twenty minutes on the grate, the hazelnuts and almonds arrive toasted, the bread browns in a pan over the coals — and then somebody has to pound all of it until it binds. That somebody is the mortar, and it is the piece most people get wrong: either with a blender that produces smooth cream where there should be texture, or with a small mortar that skids across the worktop on the first blow.

This 18 cm H&H solves the problem through sheer mass. It is 4.69 kg of marble according to the listing's attribute table — real marble, not granite and not painted ceramic — and that mass is half the job: when you are pounding toasted hazelnuts and almonds for the [romesco of a calçotada](/recetas/calcots-brasa-romesco-kamado), the mortar stays where you put it and the pestle strikes a still bowl instead of chasing it. The 18 cm is the top of the useful range at home: romesco for forty calçots goes in at once, and it is still comfortable for a teaspoon of cumin.

Marble versus granite is not a matter of taste. Marble is softer and polishes smooth; granite is harder and usually keeps an open, abrasive pore. That makes a marble mortar better at emulsifying — an allioli, a romesco, a picada — because the bowl neither drinks the oil nor keeps yesterday's aromas, and worse at grinding dry spice to fine powder, where granite's roughness helps. For what we cook here, marble wins: the [black-garlic allioli for the cuttlefish](/recetas/sepia-a-la-plancha-kamado-alioli) emulsifies without egg, on the garlic's own starch and patient pounding, and there a smooth surface is an advantage rather than a flaw.

Two jobs in particular earn this mortar its place in a kamado kitchen. One is the whole cumin for the [Uzbek samsa](/recetas/samsa-uzbeka-cordero-kamado): crushed with a sharp blow right before the filling is mixed, it smells like a different spice from the pre-ground jar. The other is the [saffron allioli for the whole cauliflower](/recetas/coliflor-entera-asada-kamado), where garlic and salt have to become a paste before a single drop of oil goes in. Neither works as well in a blender.

What it is not. H&H is decent Italian housewares but not a heavyweight name, and the record is thin: 4.1 out of 5 from 43 ratings, too few to judge consistency in a natural-stone product. The listing's extended copy is translated from Italian and recycled across the 12, 14 and 18 cm formats — it even discusses the 12 cm mortar on this page — so the measurement to trust is the one in the title and the attribute table. Nor is the inner diameter of the bowl published, only the outer one: the real capacity is something you assess when the box is open.

One care note that follows directly from the material: marble is calcium carbonate and reacts with acid. Romesco carries vinegar and allioli often carries lemon, so do not leave the sauce sitting in the bowl. Empty it, rinse with hot water, dry it. No dishwasher, no soaking in detergent, and the mortar will hold the same finish for decades.