Alessi MT18/3 B Ossidiana Espresso Coffee Mug - Black Ceramic Cup for Espresso Machines, 2.4 oz, Durable Porcelain, Dishwasher Safe, Italian Design

Product Overview

For coffee enthusiasts who value aesthetics alongside function, the Alessi Ossidiana offers a compelling package. Unlike traditional cylindrical moka pots, its asymmetrical body creates an organic, almost sculptural presence. The pot is crafted from high-grade aluminum or stainless steel (material not explicitly stated but typical for such pots), ensuring even heat distribution during brewing. It measures 4 inches in diameter, 4 inches in width, and 8 inches in height, and weighs about 0.5 kilograms—light enough to store easily. The capacity of 0.15 liters is modest, producing roughly two demitasse servings. Operation is fully manual: fill the lower chamber with water, insert the filter basket with fine-ground coffee, screw on the top, and place on a stovetop. The included components are just the pot itself (model MT18/3 B), with no additional accessories. Reviewers frequently praise the brew quality, describing it as smooth and flavorful, though some note the learning curve to avoid bitterness. The asymmetrical design also means the coffee reservoir is not uniformly shaped, making thorough cleaning more challenging—a point echoed in several reviews. As a handwash-only item, it requires gentle care to maintain its appearance. Despite these quirks, many consider it a worthwhile indulgence for its design and the enjoyment it brings to daily coffee rituals. Its suitability as a gift is repeatedly highlighted, with recipients often delighted by both its looks and performance.

Build & Materials

The Alessi Ossidiana is a testament to the brand's commitment to marrying art with function. Designed by Mario Trimarchi, the pot's asymmetrical silhouette is its defining feature. The body is crafted from polished metal—likely aluminum for heat conductivity or stainless steel for durability (Alessi does not specify the material on the packaging, but similar models use aluminum). The finish is smooth and reflective, typical of Alessi's design language. The handle is ergonomically shaped and stays relatively cool during brewing, though the metal top can get hot. The lid sits flush with a small knob. All parts screw together securely. Because of the irregular shape, manual cleaning with a soft sponge is recommended; abrasive cleaners or dishwashers may damage the finish. The pot feels substantial for its size, weighing 0.5 kg, and the threading is precise. Over time, some users report minor staining inside, which is common with aluminum coffee makers. The design is undeniably eye-catching, making it a display piece even when not in use.

One trade-off of the asymmetrical design is the difficulty in reaching the reservoir's inner corners. Several reviewers note that coffee grounds can accumulate in crevices, requiring extra attention during cleaning. This is a consideration for those who prefer low-maintenance kitchen tools. However, for collectors and design enthusiasts, the visual payoff outweighs the extra care.

Shot Quality

In terms of brewing performance, the Ossidiana delivers a respectable cup that many users describe as better than standard moka pots. The even heat distribution (assuming aluminum construction) helps extract flavors without scorching. Reviewers frequently use words like 'perfect,' 'flawless,' and 'rich' to describe the result. A typical brew takes about 5–8 minutes on a medium flame. The coffee emerges with a thin crema layer, characteristic of stovetop espresso. The 0.15-liter yield is enough for one generous or two small servings. Some experimentation with grind size and packing is needed to avoid bitterness, as with any manual brewer.

The main performance critique is the cleaning difficulty, which affects long-term consistency. Leftover oils or grounds can subtly alter taste if not thoroughly removed. Several owners mention that the asymmetrical shape makes it harder to rinse out compared to traditional round pots. Additionally, the small capacity may frustrate those needing more than two cups. But for its intended use—producing a small batch of high-quality espresso-like coffee—the Ossidiana performs admirably. It does not claim to match a pump espresso machine, but within its category, it satisfies.