Cider has been produced at the Isastegi farm since the 17th century. It is an integral part of the Basque culture, where it is an everyday drink. Isastegi transcends the cider category, crafting a unique product born of the experience that comes from practices transmitted from generation to generation paired with innovation. Isastegi cider is produced exclusively with organically-grown, native Basque apples farmed within a 15-kilometer radius of their cider house in Tolosa, in the countryside outside of San Sebastián.
Isastegi is also a founding member of the Gorenak Society and Euskal Sagardoa, a new PDO for Basque natural cider. It was created in 2017 and allows the use of about 115 local apple varieties grown in the Basque Autonomous Community. It certifies both the quality and origin of the apples and cider. Isastegi has also recently gained organic certification by ENEEK (Basque Organic Regulatory Council) and does not add sulfites to their cider at any point during the process.