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toothpaste

 orange juice-friendly toothpaste
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The idea is to develop a flavour of toothpaste that will allow you to drink orange juice after you brush your teeth. How many times have you eaten your breakfast, but forgotten to finish your orange juice until after you brushed your teeth? The trick would be to devise a flavour that still convinced people their teeth and mouth were clean, but not be too overpowering to prevent them from drinking their orange juice.

I suppose the mintiness of the toothpaste reacts with any citrus fruit, so this toothpaste would allow you to eat grapefruit after brushing your teeth as well.

—mGlucose, Jun 14 2001

q. Why does fresh orange juice taste so awful after you have just brushed your teeth? http://www.infoclub...ist/lwa96house.html
Professionals act out the annotations. I am played by Mr. Mathew Hendry, Esq., the better-informed gravelpit by Mr. Richard Morton. [Monkfish, Jun 14 2001]

q. Why does fresh orange juice taste so awful after you have just brushed your teeth? http://www.newscien...rticle.jsp?id=lw108
Professionals act out the annotations. I am played by Mr. Mathew Hendry, Esq., the better-informed gravelpit by Mr. Richard Morton. [Monkfish, Oct 04 2004]

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       Part of the problem, I think, is that the toothpaste is alkaline and the OJ acidic; acidic toothpaste not sounding very useful, this part might be insoluble.
—Monkfish, Jun 15 2001
   

       try brushing with baking soda toothpaste.
—mihali, Jun 15 2001
   

       The unpleasant taste is actually caused by the detergent (usually sodium lauryl sulphate) that is added to toothpaste interacting with the o.j. It's an effect that has been sudied for many years but no one has figured out how to prevent it yet except by omitting the detergent from the toothpaste. This would be entirely bakable because the only purpose of the detergent is to create a nice foam which provides a visual cue that the toothpaste is "working".
—gravelpit, Jun 23 2001
   
      
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