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- [Mark] This is Mark Isselhardt,

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maple specialist with
University of Vermont Extension.

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This is a "Vermont Maple Minute."

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Why is maples syrup different colors?

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Pure maple syrup ranges in color

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from light golden amber
to dark reddish-brown.

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Over the course of the
maple production season,

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the color of maple syrup produced

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in an individual maple operation

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will gradually progress
from lighter to darker.

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This progression has many causes,

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but is primarily due to gradual changes

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in the composition of the maple sap.

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The changes occur as a result
of warming temperatures

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and the production of
accompanying metabolic changes

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in the trees.

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Many people feel like
dark syrup is thicker,

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but by law, they all need
to be the same density.

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This has been a "Vermont Maple Minute."

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I am Mark Isselhardt,

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maple specialist with
University of Vermont Extension.