2018 Technical Specifications

Alcohol 15.2%
pH 3.87
Total Acidity 6.15 g/L
Grape Varieties 92% Zinfandel, 8% Carignane
Region Sonoma County
Harvest Dates 13–23 September 2018
Brix at Harvest 25.6°
Fermentation Vessels Small tanks
Natural Yeast Yes
Indigenous Yeast Yes
Malolactic Fermentation 100%
Oak Types Air-dried American oak
Used Oak Only Yes
Contains Added Sulfites Yes
Production Details Mazzoni Home Ranch fruit carrying the Sonoma County appellation was hand-harvested, destemmed and crushed. Full-crush, floating-cap fermentation was followed by pressing at seven days. The wine spent seventeen months in 100% air-dried American oak barrels: 20% one-year-old, 15% two-year-old and 65% three-year-old. Additions were 0.56 g/L tartaric acid and 2.7% water; minimum-effective sulfur was 35 ppm at crush and 184 ppm over the course of aging. The wine was pad filtered at bottling.
Tasting Notes Garnet-ruby; ripe cherries, raspberries, clove, baked dessert and sweet toasted oak; bramble fruit, smooth polished tannins, lively acidity and a long finish.

2017 Technical Specifications

Alcohol 15.1%
pH 3.79
Total Acidity 6.7 g/L
Grape Varieties 88% Zinfandel, 10% Carignane, 2% Petite Sirah
Drinking Window Enjoyable on release through 2026
Region Sonoma County
Harvest Dates 29 August–4 September 2017
Brix at Harvest 26.7°
Natural Yeast Yes
Indigenous Yeast Yes
Malolactic Fermentation 100%
Oak Types Air-dried American oak
Used Oak Only Yes
Contains Added Sulfites Yes
Production Details Mazzoni Home Ranch fruit carrying the Alexander Valley appellation was hand-harvested, destemmed and crushed. Full-crush, floating-cap fermentation was followed by pressing at six days. The wine spent twenty months in 100% air-dried American oak barrels: 15% two-year-old and 85% three-year-old. Additions were 0.67 g/L tartaric acid and 4% water; minimum-effective sulfur was 35 ppm at crush and 155 ppm over the course of aging. The wine received depth filtration at bottling.
Tasting Notes Deep garnet; plum, black cherries, toasted oak, clay minerals and savory herbs; ripe stone fruit, elegant tannins, smooth texture and crushed-pepper spice.

2005 Technical Specifications

Alcohol 15.1%
Grape Varieties 97% Zinfandel, 2% Carignane, 1% Petite Sirah
Region Sonoma County
Natural Yeast Yes
Indigenous Yeast Yes
Oak Types Air-dried American oak
Production Details The Sonoma County wine came from Mazzoni Home Ranch. Eighty-four percent was drawn from restored hillside vineyards replanted to Zinfandel; the balance came from the old Mazzoni back block containing Carignane and Petite Sirah. Three parcels fermented separately on their own yeasts, were assembled, and then aged for eleven months in air-dried American oak.
Tasting Notes Bramble fruit; well structured.

2004 Technical Specifications

Alcohol 15.2%
Grape Varieties 88% Zinfandel, 10% Carignane, 2% Petite Sirah
Region Sonoma County
Natural Yeast Yes
Oak Types Air-dried American oak
Production Details The first Oltranti bottling carried the Sonoma County appellation and came from Mazzoni Home Ranch. Eighty-five percent came from restored hillside vineyards replanted to Zinfandel; the balance came from an old mixed planting of Zinfandel, Carignane and Petite Sirah. Several parcels were fermented separately. After natural primary and secondary fermentations, the lots were blind-tasted, assembled and racked to air-dried American oak barrels for aging.
Tasting Notes Exotic spice, rich dark fruit and full body.

Producer Information

Address
17100 Montebello Road, Cupertino, CA 95014-5435, USA
Phone
+1 408.867.3233
Owner
Private ownership (founding families)
Cellarmaster
John Olney (Head Winemaker & CEO)

Online Presence