Problem to be solved. To provide a beet smoothie that has a delicious taste even if it is a smoothie made from beet as raw material, and, moreover, that can enable easy check of the oxidation state of betanin. Solution. The beet smoothie is made from beet as raw material and contains the crushed beet in volume by 30% to 50%; to this beet puree a crushed apple of apple puree is mixed in volume by 30% to 50%, and a crushed strawberry of strawberry puree is mixed in volume by 10% to 20%; and, furthermore, a pH regulator is added to bring the pH to 3 to 5.

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