Concentrate in the context of viticulture and enology refers to grape must or juice that has had a significant portion of its water content removed, typically through vacuum evaporation, reverse osmosis, or freeze concentration, resulting in a thick, intensely flavored syrup that can be used to adjust
sugar levels,
color, or flavor in winemaking; this is distinct from the natural concentration that occurs through botrytis or late
harvesting, as it is a technological intervention, often used in the production of
dessert wines or to correct underripe seasons; for poetry students, concentrate serves as a metaphor for reduction and essence—the stripping away of the extraneous to arrive at a pure, potent core, much as
a poet revises to compress meaning into the fewest possible words, and it raises interesting questions about authenticity and the line between natural and engineered wine.