Construction of the new winery began in 1999 and ended in 2003.
Artazu, by the way, is one of many new wineries to spring up in the last year.
It was the first new large-scale winery to be established in the valley since before prohibition.
More than half of the new wineries are outside California.
They point out that new wineries don't have to meet either requirement.
The 1997 vintage was made in the new winery, which is to open to the public this summer.
In Iowa alone, a new winery has been licensed every two weeks for the past year, officials say.
The hearing is also expected to consider limiting the number of new wineries.
Although the couple have been growing grapes here since 1983, they recently finished building a new winery to make and bottle their product.
Most of the new wineries that opened in California in the 1970's used it, too.