Production Protocol Revised 01/23/15

‘‘Coro Mendocino’ shall be produced only with Mendocino County fruit. “Vinted” and/or “Cellared” by will be permitted to facilitate acquisition of beneficial blend components by all participants from Mendocino producers. Each participating winery will produce their own blend within protocol parameters, meet submission timetables, submit to blind tasting panel for pass/fail, wines to be packaged in uniform bottle and packaging with individual branding subjugate to Coro Mendocino.

Varietal Makeup

  • Zinfandel to compose a minimum of 40% and a maximum of 70% of each Coro blend. Zinfandel shall compromise dominant percentage of each Coro blend.
  • 2nd Tier Varietals: Percentage of any ONE not to exceed Zinfandel as majority component and max of 5% out of vintage. Syrah, Petite Sirah, Carignane, Sangiovese, Grenache, Dolcetto, Charbono, Barbera, Primitivo.
  • Free Play: Up to 10% of total blend from any single or combination of vinifera.

Basic Chemistry Limits

  • Alcohol: 12.5 - 16%
  • Glu + Fru, enzymatic: < 700 mg/100ml
  • pH: 3.2 - 3.8
  • Volatile Acidity: < 0.1g/100ml
  • TA: 0.4 - 0.9g/100ml
  • Malic, enzymatic*: < 35 mg/100ml
  • PLUS: Required plating for Brett along with the above basic chem panel by third party lab (excess malic could be overcome by sterile filtration requirement).

(excess malic could be overcome by sterile filtration requirement)

Cooperage and Aging Parameters:

  • Cooperage to be minimum 25% new with maximum of 75%. Oak alternatives may be used in conjunction with barrel requirements.
  • Minimum one year in barrel.
  • Minimum 1 year in bottle, pre-release.
  • Release to be bottled by June 30th. 2 ½ year cycle (example - 2001 Coro released in June 2004).

Labeling Parameters

  • On the 1.5L bottle the lower edge of the front (consumer) label will be 70mm from the base of the bottle.
  • On the 750ml bottle the lower edge of the front (consumer) label will be 30mm from the base of the bottle.
  • The bottom of the cartouche will be 22mm from the top of the front (consumer) label.

Annual Time Table

  • October 31: Intent to participate forms for upcoming cycle to be bottled next June due ( i.e. for ’01 vintage-barrel tastings winter-spring ’02-03, bottle June ’03, release June ’04).
  • Mid December: First Preliminary group tasting
  • Mid January: Second preliminary group tasting. Coro Membership Application and yearly dues are due.
    Each year at the annual meeting the members of Consortium Mendocino will carry out a “vintage tasting” with its winemakers to determine the quality of the wines from the fall harvest and decide by a membership vote if the vintage shall qualify to earn the Coro mark.
  • Mid March: Third preliminary tasting for the June bottling (following year release). Review of ‘previous vintage’ bottled wines being released in June.
  • Mid April: Selection Panel tasting. Estimated case count to be submitted (75 case minimum).
  • End of May: Final blend and case count confirmation, submission of samples with third party basic chem panel and Brett plate; pre-bottling Selection panel tasting.
  • End of June: Wines must be bottled by June 30th. After the case count confirmation (mid-April tasting), actual release case count cannot vary more than 10%. Wine portion of the annual dues will be donated to the Consortium’s marketing library this month.

Selection Panel and Review Process

A Selection Panel of 5 members of Consortium Mendocino, at least 3 being participating winemakers, will be appointed each year at the annual meeting. The purpose of the panel will be to supervise the Coro tasting process, to conduct the qualifying Selection Panel tasting (a simple pass/fail majority vote) and to conduct the pre-release bottle Review Tasting.


Current Release Producers

Past Producers