Yes, Hagafen's wines are kosher.
Hagafen Cellars has three brands--Hagafen Cellars, Prix Vineyards, Don Ernesto-- and each bears the hechsher of the Orthodox Union as Kosher for Passover. Our wines are also yayin mevushal via the flash pasteurization process. On the back labels of the wine releases from all three brands you will find OU-P Mev. which indicates the certification of the Orthodox Union.
To search the OU's PC-compatible online database, please click here.