Du Tour
- coffee liquor during infusion should be agitated by chocolate frother or similar device mid-nineteenth century ⟨France⟩
During the infusion the liquor should be several times agitated by a chocolate frother, or something of the same kind
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage. The quoted text from Du Tour's description explicitly states that during infusion, the liquor should be agitated by a chocolate frother or similar device, which matches all key elements of the claim including subject, predicate, and object.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. Viewpoint correctly attributes the statement to Du Tour as the French naturalist who described the method. Stance is appropriately 'asserts' for a prescriptive description. Sentiment is neutral, matching the instructional tone. Time is accurate: the passage states 'about the middle of the nineteenth century' and the normalized dates (1840-1860) are consistent with this temporal scope. Context correctly identifies France as the geographical and cultural setting. The quote is verbatim from the passage and directly supports the claim about agitating the liquor during infusion.