Aging of wine that is aged is rarely aged for long; it is estimated that 90% of wine is meant to be consumed within a year of production, and 99% of wine within 5 years. The Ancient Greeks and Romans were aware of the potential of aged wines. In Greece, early examples of dried "straw wines" were noted for their ability to age due to their high sugar contents. These wines were stored in sealed earthenware amphorae and kept for many years. In Rome, the most sought after wines—Falernian and Surrentine—were prized for their ability to age for decades. In the Book of
Ancient Greece and wine of using suckering and plant cuttings for new vineyard plantings. The Greeks also employed vine training with stacked plants for easier cultivation and harvesting, rather than let the grapevines grow untrained in bushes or up trees. While ampelographers have been unable to identify the exact ancestry of any current "Vitis vinifera" grape variety among those grown by the ancient Greeks, several—e.g. Aglianico (also known as "Helleniko"), Grechetto, and Trebbiano (also known as "Greco")—have distinct Greek heritage. Not all Greek viticulture techniques were widely adopted by other wine regions. Some Greek vineyards used mysticism to ward off disease and bad weather.