orange juice and toothpaste . . . bad combination!
July 29th 2008 07:52
have you ever wondered why orange juice tastes so awful if you drink it too soon after brushing your teeth?
many people bush their teeth in the morning before sitting down to breakfast and get a very unpleasant taste when they take a sip of their orange juice . . . these early morning brushers get a nasty shock and may commonly screw their faces up in disgust and say "YUCK!"
well i was watching a childrens TV science program which explained the chemical reasons behind this yucky taste and i was quite surprised!
i had always presumed it was a bad flavour combination related to toothpaste being minty menthol . . .
but no . . .
there is detergent in the toothpaste that numbs our sweet receptor taste buds!
99% of toothpastes contain a chemical called Sodium Lauryl Sulphate as a foaming agent so we can get a sense of satisfaction with a mouth full of lather . . . this is the same chemical that is used in shampoos, shaving foams, bubble baths, fiber therapy caplets, and some dissolvable aspirins . . . the same chemical that is used in industrial products including engine degreasers, floor cleaners, and car wash soaps
Sodium Lauryl Sulphate thickens, foams, and lathers . . . but at the same time suppresses the sweet receptors on the tongue . . .when these sweet sensors are de-activated (or impaired) only the bitter tastes become detectable in orange juice
since the sweetness in oranges disguises the bitter and sour flavours caused by their citric acid, the absence of sweetness will enhance the bitterness and sourness naturally present in your typical glass of OJ . . . your toothpaste just removes the sugary mask
our tongues have have four traditional areas that are sensitive to sweet, sour, bitter and salt with the sweet part being right at the front of your tongue . . . swilling detergent affects the buds closest to the front of the tongueand turns our brekky sour!
many people bush their teeth in the morning before sitting down to breakfast and get a very unpleasant taste when they take a sip of their orange juice . . . these early morning brushers get a nasty shock and may commonly screw their faces up in disgust and say "YUCK!"
well i was watching a childrens TV science program which explained the chemical reasons behind this yucky taste and i was quite surprised!
i had always presumed it was a bad flavour combination related to toothpaste being minty menthol . . .
but no . . .
there is detergent in the toothpaste that numbs our sweet receptor taste buds!
99% of toothpastes contain a chemical called Sodium Lauryl Sulphate as a foaming agent so we can get a sense of satisfaction with a mouth full of lather . . . this is the same chemical that is used in shampoos, shaving foams, bubble baths, fiber therapy caplets, and some dissolvable aspirins . . . the same chemical that is used in industrial products including engine degreasers, floor cleaners, and car wash soaps
Sodium Lauryl Sulphate thickens, foams, and lathers . . . but at the same time suppresses the sweet receptors on the tongue . . .when these sweet sensors are de-activated (or impaired) only the bitter tastes become detectable in orange juice
since the sweetness in oranges disguises the bitter and sour flavours caused by their citric acid, the absence of sweetness will enhance the bitterness and sourness naturally present in your typical glass of OJ . . . your toothpaste just removes the sugary mask
our tongues have have four traditional areas that are sensitive to sweet, sour, bitter and salt with the sweet part being right at the front of your tongue . . . swilling detergent affects the buds closest to the front of the tongueand turns our brekky sour!
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