Biltong biltong was made during the cold winters of the South African Highveld for best results. The cold, dry air typically dried out the biltong much more effectively, and in the best possible food safety environment. Mould and bacterial risk are at a natural minimum, and thicker biltong cuts can be hung to dry slowly for a richer texture, fuller flavor and dark colour. Heat has only been introduced into the process in recent years, and traditional biltong makers maintain that heat makes for an inferior end result. Due to increased risk of bacterial and fungal growth, the heated method, such
Biltong of Southern Africa, such as the Khoikhoi, preserved meat by slicing it into strips, curing it with salt, and hanging it up to dry. European seafarers preserved meat for their long journeys by curing meat in salt or brine. European settlers (Dutch, German, French) who arrived in southern Africa in the early 17th century used vinegar in the curing process, as well as saltpetre (potassium nitrate). The potassium nitrate in saltpeter kills" Clostridium botulinum", the deadly bacterium that causes botulism while the acidity of the vinegar inhibits its growth. According to the World Health Organization, "C. botulinum" will not grow