Macadamia nuts (Macadamia integrifolia and M. tetraphylla) are grown in subtropical and tropical regions and are valued for their delicate flavor, crunchy texture, and healthful oil profile. The highest quality kernels are cream colored, with 72 to 78% oil and 1.5% moisture. Two major quality defects of macadamias are kernel browning after roasting and off-flavor development caused by oxidation and rancidity during storage. Incremental drying to 1.5% kernel moisture content is critical to prevent kernel browning. Protection of the shelled nuts from moisture and oxygen during storage, delays rancidity and extends shelf-life.