If I make my tea with boiling water it has a totally different smell to that made with about 70C water. How does the temperature of the water used affect the release of the flavour from the tea leaves into the tea drink and ultimately into the air above the tea drink?
2007-02-03 02:41:36 · 3 answers · asked by Jon 2 in Science & Mathematics ➔ Chemistry
Heat helps release a lot of the oils and flavors still trapped in the leaves
2007-02-03 02:47:45 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Thermodynamically speaking, the reason you are able to smell the tea better when it is boiling in water is because the water molecules are banging against the molecules of the tea leaves and are breaking them down better (releasing more flavor) than they would in room temperature water. When you smell...you are actually receiving particles of the substance in your nose, so when the water/tea molecules are more excited and escape the surface tension of the water easier...you smell more of it.
Hope that answers your question.
2007-02-03 03:05:28 · answer #2 · answered by sealguy77 2 · 0⤊ 0⤋
because there are flavours in the tea that are soluble, or more soluble only in very hot water.
Best tea is made only with boiling water (near 100°C), if you live high in a mountain the water will boil for example at 90°C and the tea will be less tasty !
2007-02-03 02:50:04 · answer #3 · answered by scientific_boy3434 5 · 0⤊ 0⤋