Are heavier duvets warmer?

When shopping online, I saw that the so-called 3kg and 4kg duvets are very cheap. Consumers who don't know why are also flocking to it. In fact, the real value of down lies in its lightness and fluffiness, not its weight. Only lighter and more bulky duvets represent premium down

Down is the only fiber with a "three-dimensional spherical" structure among all fibers. It makes him have "high bulkiness" that other fibers cannot achieve. Other linear fibers can increase the bulkiness of the quilt, which can only be achieved by continuously adding fibers to "increase weight", while duvets can be easily achieved by choosing high-quality high-loft down.

Higher lofty down requires larger floe to achieve. Many online claim to use large-flowered goose down. In fact, the real large-flowered goose down should be above 5A grade, that is, the average diameter is 3.3cm, the growth cycle is more than 280 days, and the bulkiness reaches 720 cubic inches.

We often say that the down in 95% goose down includes "down, immature down, similar down, damaged down", and the core that determines the quality is the plump "down", the bigger and consistent the down The better the sex, the higher the fluffiness.