Great question. If you’re drinking a high-quality instant coffee (such as Feliz Ethically Sourced Freeze-Dried Colombian Arabica), the answer is - any time you want a quick cup of tasty, high-quality coffee! Especially when you: • Don’t have time for coffee to steep or brew • Want to save money and drink coffee at home • Have your coffee get cold by the time you actually remember ... https://www.quora.com/profile/Thomasgoode-1