William H. Ukers (author)
- automatic roasting machine has been defeated by variance in coffee composition and atmospheric conditions
the extreme variance in composition of different coffees, the effect of changing atmospheric conditions, and the lack of constancy in the calorific power of fuels have conspired to defeat the automatic roasting machine
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage. The quoted text explicitly identifies variance in coffee composition and atmospheric conditions (among other factors) as having 'conspired to defeat the automatic roasting machine,' which precisely matches the claim's subject-predicate-object structure.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage presents this as general knowledge, not attributed to a named source). The stance 'asserts' is appropriate as the passage states this as fact. The sentiment is neutral, matching the objective tone. The time qualifiers are correctly set to null as the passage provides no temporal scope. The context is appropriately empty as no specific sense restriction applies. The quote appears verbatim in the passage and directly supports the claim about the automatic roasting machine being defeated by these factors.