Sparkling · Barossa Valley · Australia
Rockford Black Shiraz
Scored from 658 calibrated Vivino reviewers, each re-centered on their own rating baseline before the bottle is ranked. Cohort: Sparkling · Australia (378 wines).
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Tasting profile
A bold, full-bodied sparkling Shiraz with pronounced blackberry, cherry, and raspberry fruit layered with vanilla, chocolate, and licorice notes. Smooth, dry, and low in acidity and tannin, it drinks beautifully with rich holiday fare and ages gracefully into a refined, festive bottle.
Synthesized from 658Vivino reviewers' tasting notes for this bottle.
What reviewers say
“Authentic Barossa Shiraz nose than follows through to the pallet. A great introduction to bold Barossa Shiraz for the lighter style red wine drinkers.”
From a top-rated Vivino review for this bottle.
Summary
From Barossa Valley in Australia, Rockford Black Shiraz is a sparkling wine.
658 Vivino reviewers rate with enough spread for a personal baseline to be measured, and those are the ones the calibrated score reads; a separate, broader pool of 681 reviewers with at least two ratings each feeds the raw-average track. The cohort it is ranked inside holds 378 Australian sparkling wines.
How the score was built
We compare the reviewers of this bottle against every other wine those same people reviewed. Each review is scored relative to the reviewer's own baseline — four stars from someone who hands out fives means something very different from four stars from someone who rarely goes above three. Every reviewer then counts the same, so the result is a calibrated consensus rather than a star average.
- Global percentile
- Where Rockford Black Shiraz lands against every wine we rank.
- In-cohort percentile
- The same comparison narrowed to its cohort — wines of the same type from the same country. A Chilean red is judged against Chilean reds, not against Champagne. Ranked against Sparkling · Australia (378 wines).
- AI-adjusted percentile
- The same reviewer-normalized score, corrected for how much confidence the sample supports: thin samples are pulled toward the corpus average. Each wine keeps the share n / (n + 53) of its measured distance from the average, where n is its calibrated-reviewer count, and the result is ranked on the same scale as the global percentile.53 is the median sample size across everything we rank. Here n is 658.
Cohort: Sparkling · Australia
