Goose down pillows rebound slowly and can be fluffy with a simple shake.

Good goose down, white color. Good goose down doesn't feel hard. Some unscrupulous businessmen will smash big feathers and sell them, but they are usually hard things like this.

If you hold a handful of good goose down in your hand, you will feel hot, because the goose down has a very good insulation effect.

Good goose down will have a faint smell of big goose, or no taste at all. It certainly doesn't smell that bad. If there is an unpleasant smell, it is probably bad duck down, which will affect the mood of sleeping.