What is Rambutan? Fresh Rambutan is a hairy red fruit that looks like something out of a science book. Rambutan is also a delicate fruit that won’t keep more than two days at room temperature once harvested. Thankfully, our freeze dried rambutan retains all the nutrients and flavor of fresh but with a much longer shelf life. We have made it simple for you to enjoy - no peeling, no refrigeration, no mess! We hope you appreciate this sweet and sour treasure.