Fruit
Duncan
B tier
Duncan is a seedy white grapefruit, one of the oldest Florida types, with rich flavour that processors and traditionalists value despite seeds. Fresh eating requires patience; juice rewards. Historical importance outweighs modern retail presence. Best juiced or cooked; supreme carefully if eating fresh. A heritage flavour reference for white grapefruit intensity.
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Unit
Characteristics
Preparations
Heritage FreshJuice
Traits
Bitter-TartHeritageOld TypeRichRich FlavourSeedySeedy White
Grading systems
Grades are placed along a shared scale so systems can be compared side by side.
US No. 2
US No. 1
US Fancy
History
US
Duncan grapefruit was among Florida’s earliest named commercial types.
US
Seedy Duncan fed early juice and fresh trades before seedless Marsh dominance.
Duncan retreated to niche and rootstock-related roles in the industry.