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Why Does Orange Juice Taste Bad After You Brush Your Teeth?

  • Toothpaste contains sodium lauryl sulfate, a detergent that helps remove dental plaque from teeth.
  • Brushing your teeth alters the layer of lipids on teeth, affecting taste perception.
  • Research shows that bitter tastes are added to orange juice after brushing.
  • The effects of detergent on taste are similar to how it dissolves fat, making cleaning easier.
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11 Articles

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Scientists have given the answer.

The ConversationThe Conversation
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Why does orange juice taste bad after you brush your teeth?

Open the article to view the coverage from The Conversation

Many have already experienced this unpleasant experience: a freshly brushed mouth, a large glass of orange juice at breakfast, and then an immediate grimace. The contrast is brutal, almost shocking. Yet, this phenomenon has nothing to do with an inexplicable taste mystery. The science of taste provides a clear and surprisingly logical answer. Behind this sudden aversion is ... Read more The article Why the orange juice becomes unobstructed after…

The taste confusions after brushing the teeth have a simple scientific explanation.

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Bias Distribution

  • 57% of the sources lean Left
57% Left

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The Conversation broke the news in on Monday, January 5, 2026.
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