Let me explain coffee powder first. Coffee powder is ground from coffee beans. Coffee doesn't dissolve, so you need utensils.

The kind of instant coffee dissolved in water is called instant coffee. Instant coffee is not real coffee, but a coffee-flavored drink.

Capsule coffee is espresso, so you need to use a special capsule coffee machine. Because the Italian bean mill is expensive and the machine is expensive, it is still difficult to operate. Therefore, the capsule machine is generally used when the requirements are not high, and the capsules are automatically put into the machine.