tannin unspecified sense

concept · 5 mentions

a component measured in brewed coffee

Other senses of “tannin”

Connections

The concepts, people, and places this entity is most linked to by claims — node size is mention count, colour is type, dashed nodes are other senses of the same word.

Concept

Defining properties

forms one-fifth to one-seventh of weight of dried tea leaf
is more completely extracted the longer tea is infused
removes removing chaff in steel-cut process
contains coffee
contains tannin black tea
contains tannin green tea

Perspectives

Claims grouped by the voice that makes them.

Dr. Hassall

black tea contains tannin tannin
assertsneutralsource: general-pg50759
15.24
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage. Dr. Hassall's analysis table explicitly shows that black tea contains 15.24 (percent) tannin, which is exactly what is quoted in the claim.
- qualifier_fidelity 0.70 pass — The claim is largely faithful to the passage. The viewpoint is correctly attributed to Dr. Hassall (from 'Analysis of Tea by Dr. Hassall'). The stance 'asserts' and sentiment 'neutral' are appropriate for an analytical chemical composition table. The time qualifiers are correctly null since the passage provides no temporal information. The context is appropriately empty as the passage does not restrict the claim to a specific sense. However, the quote '15.24' is problematic: while this number does appear in the table for black tea's tannin content, it is not a verbatim quote from the passage in the traditional sense—it's a numerical value from a data table rather than a textual quote. The quote should ideally reference the table or indicate the numerical value more explicitly, or the quote field should be null if only numerical data is being cited. This minor issue prevents a perfect score but does not fail the claim since the underlying factual content is supported by the passage.
green tea contains tannin tannin
assertsneutralsource: general-pg50759
18.69
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage. Dr. Hassall's analysis table explicitly shows that green tea contains 18.69 tannin, as indicated in the provided quote from the table.
- qualifier_fidelity 0.90 pass — The claim is faithful to the passage in viewpoint (Dr. Hassall), stance (asserts), and sentiment (neutral). The time qualifiers are correctly null since the passage provides no temporal information. The context is appropriately empty. However, the quote value "18.69" is problematic: while this number appears in the passage as the tannin content for green tea from Dr. Hassall's analysis, the quote itself should be a verbatim textual excerpt, not a numerical value extracted from a table. A proper quote would be something like "Green. ... Tannin ... 18.69" or the relevant row from the analysis table. The numerical value supports the claim but is not technically a quote in the traditional sense.

Frederick B. Goddard (author)

tannin forms one-fifth to one-seventh of weight of dried tea leaf
assertsneutralsource: general-pg50759
Tannin forms from a fifth to a seventh of the weight of the dried tea leaf
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage with identical wording: 'Tannin forms from a fifth to a seventh of the weight of the dried tea leaf.' The quote provided matches the source text exactly, making this fully grounded.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage states this as fact without attributing to a named source). The stance of 'asserts' matches the declarative nature of the statement. The sentiment is neutral, appropriately reflecting the objective, informative tone. The time qualifiers are correctly null as the passage provides no temporal scope. The context is appropriately empty as the passage does not restrict this claim to a specific sense or role. The quote appears verbatim in the passage and directly supports the claim.
tannin is more completely extracted the longer tea is infused
assertsneutralsource: general-pg50759
is the more completely extracted the longer the tea is infused, or "draws."
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'Tannin forms from a fifth to a seventh of the weight of the dried tea leaf, and is the more completely extracted the longer the tea is infused, or "draws."' The subject, predicate, and object are all explicitly present with no rewording required.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (passage presents this as factual statement without attribution to a named source). The stance 'asserts' is appropriate as the passage states this as fact. The sentiment is neutral, matching the declarative, informational tone. Time qualifiers are correctly null as the passage provides no temporal scope. Context is empty as appropriate since no specific sense or role restriction is mentioned. The quote appears verbatim in the passage and directly supports the claim about tannin extraction during tea infusion.

Mr. Aborn

removing chaff in steel-cut process removes tannin 1913-1914
disputesneutralsource: coffee-pg28500
removing the chaff in the steel-cut process does not remove any of the tannin
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly supported by the passage. The quoted text from Mr. Aborn's 1913 and 1914 reports explicitly states that 'removing the chaff in the steel-cut process does not remove any of the tannin,' which directly matches the claim that he disputes the idea that removing chaff removes tannin.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to Mr. Aborn. The stance of 'disputes' is appropriate as the passage frames this as a refutation of an idea (stated as 'does not remove'). The sentiment is neutral, matching the factual tone of the technical claim. The time period (1913-1914) is accurate, as the passage explicitly references his '1914 and 1913 reports.' The quote appears verbatim in the passage and directly supports the claim. Context is appropriately empty as no specific sense restriction is needed.

O.W. Willcox

coffee contains tannin 1913
assertsneutralsource: coffee-pg28500
Tannin in coffee
judge verdicts (2)
- groundedness 0.70 pass — The passage contains a bibliographic entry for O.W. Willcox's article titled 'Tannin in coffee' published in Tea and Coffee Trade Journal in 1913, which directly supports the claim that coffee contains tannin. The title itself states the relationship, though the actual content/arguments of the article are not provided.
- qualifier_fidelity 0.90 pass — The claim is largely faithful to the passage. The viewpoint (O.W. Willcox), stance (asserts), and sentiment (neutral) are all appropriate. The quote 'Tannin in coffee' appears verbatim in the passage as a title from 1913. The time qualifier correctly reflects the 1913 publication date. However, there is a minor issue: the passage lists two separate works by Willcox from 1913 - one titled 'Coffee aroma secret out' (XXV: 343-344) and another 'Tannin in coffee' (XXV: 485). The claim's quote matches the second work. The context is appropriately left empty as the passage provides no specific contextual restriction on the sense or role of tannin in coffee. All qualifiers are faithfully represented.

Change over time

1913-1914

removes removing chaff in steel-cut process

1913

contains coffee