Dust Tea is tea that has been prepared with dust or other small particles. To put it simply, the tea found in normal tea bags is Dust tea. Dust tea is used inside ordinary tea bags instead of tea leaves, which take up more room and don’t infuse as well. Dust tea also takes up less space inside the bag. Thus, dust tea is just normal tea that has been pulverized for convenience and utilized in other ways to improve the tea-drinking experience using various brewing techniques.
 
It is the lowest grade of tea and is obtained by crushing broken leaves, which only produces tiny tea particles. Tea dust is typically seen in tea bags, although it has no flavor.