100% merino wool represents the pinnacle of natural knitwear, offering unmatched thermoregulation, structural softness, and breathability. Because it is a pure fiber, its care requires precise methods. Understanding the correct steps for washing, drying, and storing is essential to preserve the structural stability of your garments, prevent felting, and guarantee long-lasting durability.
Frequency and airing: preventive care for pure fibers
Unlike synthetic polyester or acrylic fabrics, pure merino wool does not trap odor-causing bacteria. As a result, the garment does not require washing after every wear:
- The purifying power of air: thanks to the breathable structure of the fiber, simply airing the garment outdoors (away from direct sunlight) is often enough to refresh the knitwear and neutralize odors.
- Targeted spot cleaning: for minor spills or stains, treat only the affected area by gently dabbing with a damp cloth and a drop of neutral detergent, avoiding soaking the entire sweater.
How to wash merino wool: hand wash and machine protocols
When full washing is necessary, avoid harsh mechanical friction, which is the primary cause of fiber shrinkage:
- Hand washing (recommended): submerge the garment inside out in cool or lukewarm water (maximum 30°C / 86°F). Use only a wool-specific detergent free from aggressive enzymes or optical brighteners. Gently submerge and squeeze for 3–5 minutes—never rub, wring, or twist the knitwear.
- Machine washing: safe only when using a certified "Wool" or "Hand Wash" cycle. Keep the temperature cold (max 30°C / 86°F) and set the spin cycle to a low 400–600 RPM. Place the knitwear inside a mesh laundry bag for protection.
- No fabric softener: fabric softeners coat the wool’s micro-scales with a chemical film, inhibiting the natural breathability and moisture-wicking properties of the yarn.
Drying, steaming, and shape-preserving storage
The drying phase is crucial for keeping the garment’s original silhouette. The weight of water on wet fibers can stretch the knit structure if handled incorrectly:
- Removing excess water: lay the sweater flat on a clean, dry towel, roll it into a cylinder, and press gently to absorb water without twisting.
- Dry flat: never hang wet wool on hangers or clotheslines. Lay the sweater flat on a drying rack away from direct heat sources (radiators, heaters) and sunlight. Tumble drying must be avoided entirely.
- Steam ironing: merino wool is naturally wrinkle-resistant. If necessary, use a low-temperature iron with a damp pressing cloth between the plate and the garment, or gently steam from a distance.
- Storage: always store knitwear folded in drawers; hangers will stretch the shoulders and distort the frame. For seasonal storage, place clean garments in breathable cotton bags with natural moth repellents (such as cedarwood or lavender).