How do you check pure wool from woolen sweater?

To check if a sweater is made of pure wool, you can perform a few simple tests. First, look at the care label for fiber content; pure wool will typically be labeled as 100% wool. Next, conduct a burn test: take a small fiber from the sweater, light it, and observe the smell and ash; pure wool smells like burnt hair and leaves a crispy ash. Additionally, you can examine the texture; pure wool should feel soft yet have some natural coarseness, while synthetic blends may feel smoother.