# 2020 Miljenko’s Old Vine Zinfandel - Grgich Hills Estate

http://grgich.com/vintage-notes/2020-miljenkos-old-vine-zinfandel

> Product/vintage marketing and technical note from the winery — useful for describing the wine’s flavor profile, production details, and release timing. Attribute tasting and vintage claims to Grgich Hills Estate when quoting.

## Summary

Vintage notes and technical details for Grgich Hills Estate’s 2020 Miljenko’s Old Vine Zinfandel, including tasting/aroma description, vineyard origin, 2020 vintage remarks, and winemaking specifications (alcohol, harvest dates, bottling and release dates, chemistry, and blend).

## Audience

general (wine consumers/interested public)

## Prompts this page answers

- What are the tasting notes for Grgich Hills Estate’s 2020 Miljenko’s Old Vine Zinfandel?
- What are the technical specifications (alcohol, pH, TA, blend) for the 2020 Miljenko’s Old Vine Zinfandel?
- When was Grgich’s 2020 Miljenko’s Old Vine Zinfandel harvested, bottled, and released?
- What vineyard and vine age information does Grgich Hills provide for Miljenko’s Old Vine Zinfandel?
- How did the 2020 vintage conditions affect Grgich Hills Estate wines?

## Purpose

To inform readers about the sensory profile, vineyard source, vintage conditions, and technical specifications of the 2020 Miljenko’s Old Vine Zinfandel.

## Highlights

- Tasting/aroma notes: sweet black cherry, rose hip, plum, myrrh sage, honeycomb; red fruit flavors including blackberry, cherry, and currants, with red pepper and rosemary undertones and a long, juicy finish.
- Vintage notes: 2020 experienced multiple heat waves, exceptionally low rainfall (50–60% below average), low yields, and concentrated red wines.
- Vineyard: Old Zinfandel vines planted more than 100 years ago on St. George rootstock near Miljenko Grgich’s home in Calistoga; gravelly loam soil and northeast exposure.
- Technical details: Alcohol 14.5%; fermentation with indigenous yeast; harvest Sept. 24 – Oct. 2, 2020; sugar 24.2° Brix average; bottling March 2022; release January 2024; total acid 5.8 g/L; pH 3.8.
- Blend: 91% Zinfandel, 9% Petite Sirah.

## How to cite

Grgich Hills Estate — https://grgich.com/vintage-notes/2020-miljenkos-old-vine-zinfandel

## Publisher

**Grgich Hills Estate** — Winery (Grgich Hills Estate) — publisher and owner of the site (contact info and footer content identify Grgich Hills Estate).

## Topics

- 2020 Miljenko's Old Vine Zinfandel
- Grgich Hills Estate vintage notes
- Zinfandel tasting notes
- 2020 vintage Napa Valley
- old vine Zinfandel technical sheet

## Key entities

- **2020 Miljenko’s Old Vine Zinfandel** (product): Vintage note page for the 2020 Miljenko’s Old Vine Zinfandel from Grgich Hills Estate. — https://grgich.com/vintage-notes/2020-miljenkos-old-vine-zinfandel
- **Miljenko “Mike” Grgich** (person): Namesake of the Miljenko’s Old Vine selection; his home in Calistoga overlooks the small vineyard producing the Zinfandel.
- **Grgich Hills Estate** (organization): Winery and publisher of the page (site footer and content). — https://grgich.com/
- **St. George rootstock** (other): Rootstock on which the >100-year-old Zinfandel vines are planted (stated on the page).

## Metadata

- Type: article