Protocol development
- Study ID
- CHRS 13
- Record stage
- Protocol development
- Evidence
- Proposed methods and expected records
Research question
Can a defined sensory method distinguish changes caused by coffee-leaf processing and extraction from variation between samples and assessors?
Location and scope: Proposed Station trials in Puerto Rico.
Principal site: Copper Hill, Las Marías & Maricao, Puerto Rico (proposed trials)
Proposed method
Compare coded samples prepared from matched leaf lots using a fixed reference preparation. The proposed design uses a trained descriptive panel, randomized serving order, repeat assessments, and agreed descriptors for aroma, bitterness, astringency, and other attributes. Record preparation and serving conditions and assess agreement and repeatability.
Expected evidence
A reproducible descriptive method and a record of which differences can be distinguished under the test conditions. This study addresses technical measurement. Consumer preference and promotional tastings are separate.
Published context: sensory and volatile profiles of coffee-leaf preparations · Companion study