Coffee roasting process is what the characteristic coffee taste aroma components are formed by causing the green coffee beans to change in taste.
Roasted Coffee beans are grind finely and processed into smaller particles to make the brewing process faster, easier and tastier. The taste of the coffee depends on how fine the coffee is ground.
Grounded coffee is very sensitive and tends to changes its characteristics quickly when it exposed to air, light, heat, and humidity. Hence we do effective packaging to prevent air and moisture from reaching the coffee.