White · Douro · Portugal
Castello d'Alba Biológico Branco
Scored from 145 calibrated Vivino reviewers, each re-centered on their own rating baseline before the bottle is ranked. Cohort: White · Portugal (1,436 wines).
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What reviewers say
“Douro Superior Rui Reboredo madeira CASTAS - Touriga Franca, Tinta Roriz e Touriga Nacional. Aromas de frutos vermelhos e especiarias revelam uma maceração suave de modo a preservar as notas típicas das castas e fazer com que o vinho esteja pronto a ser bebido após o engarrafamento. Aromas muito típicos das castas do Douro, notas doces de esteva, de flores, de amoras, de especiarias contribuem para a sua complexidade aromática, na boca é muito suave, com acidez equilibrada, taninos muito finos.”
From a top-rated Vivino review for this bottle.
Summary
Castello d'Alba Biológico Branco is a Portuguese white from Douro. The blend is Rabigato, Viosinho and Gouveio.
1,435 other whites from Portugal form the cohort it is ranked inside. The calibrated figure is built from 145 reviewers whose rating history varies enough to place their own average. A broader pool of 147 reviewers with two or more ratings feeds the raw-average track instead.
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 Castello d'Alba Biológico Branco 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 White · Portugal (1,436 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 145.
