Here's how to preserve these briney, salty treats. Keeping olives fresh helps you enjoy their salty flavor for as long as possible. Opened jars of olives last a few months if stored properly in the ...

Be careful not to mix ripe (black) and unripe (green) olives. Make 2 cuts lengthways into each olive, through to the stone. Place the olives in clean jars until the jars are two-thirds full. Cover ...