Born and raised in Thessaloniki, Konstantinos (Kostis) Kalpaxidis is a graduate in Agricultural Science and holds a Master's Degree in Viticulture, Enology and Wine Economics from SupAgro in France and Hochschule Geisenheim University in Germany, as well as an MBA from ALBA Graduate Business School, Athens. Kostis joined the House of Metaxa in 2016, after completing his postgraduate studies and acquiring valuable experience in winemaking across Europe, and was officially appointed the 6th Metaxa Master in 2024. Within his role, he leads the efforts of the House of Metaxa to support the sustainable transformation of the Samos vineyard. He signed his first original creation, METAXA 5 Stars Greek Orange, co-signed Private Reserve METAXA Orama with the 5th Metaxa Master in 2023, and created the line of METAXA Ready to Drink cocktails.