What is the white mold on my biltong? Are you worried about mold on your biltong? Don’t worry, we’re here to help! Keep your biltong free from mold the easy way. This is a common question we see, but don’t panic yet! It’s probably not even mold you’re seeing. Today we’re taking a deep dive into the ” white stuff” on your biltong, what causes it, how to save your snack, and whether or not you even need to worry.