Irish moss, scientifically called Chondrus crispus, is a species of red algae commonly found along the rocky coasts of the Atlantic Ocean, particularly around Ireland and Britain. As a seaweed, it thrives in the chilly tidal zones where it forms dense, bushy mats attached to the substrate.
Irish moss is characterized by its tough, cartilaginous texture, and typically appears dark purple or green, but can also be reddish or yellowish. It is highly prized for its carrageenan content—a natural thickener and stabilizer used in food production, cosmetics, and pharmaceuticals.
As for its scent profile, Irish moss exudes a subtle marine aroma that can vary depending on its environment and treatment. Freshly harvested, it often carries the brisk, salty freshness of ocean air, mingling it with a faintly earthy undertone similar to other seaweeds. When dried, its scent becomes more concentrated and can bear a deeper, muskier earthiness reminiscent of dried vegetable matter, while still retaining its characteristic oceanic notes. This marine-based scent makes Irish moss a unique and refreshing herbal addition, especially appreciated in some culinary and therapeutic applications.