Many tasters on one bottle cannot establish batch consistency

Sampling Before Generalization

Twenty tasters evaluating one bottle contribute information about assessor responses to that bottle. They do not provide twenty independent observations of production batches. A batch-consistency study must sample batches and preserve the sampling hierarchy in its analysis.

Academy Application

Contrast these designs in a sensory-method exercise. Ask learners to name the sampled units and the population their conclusion covers. No new whiskey trial has been performed.

Provenance

Meilgaard et al.,2016,printed pp.390–398.

Sensory Evaluation Techniques — Methods, Critical Corrections And Academy Applications

Meilgaard 2016 — Sampling and replication define the claim

Connection

Sensory notes are observer-conditioned observations, not product constants