Here we will explain to you the differences between indoor and outdoor leaf drying, and why indoor drying is a far superior practice. Crisp powder is made from 100% indoor dried kratom leaves. Believe it or not, there are traits to look for in kratom powder that reveal whether the leaves were dried indoors. We discovered indoor drying by observing that the freshest batches of kratom had a sweet smell to them. How did this smell come about? We eagerly wanted to know.