The result's a tea with virtually double the quantity of the antioxidants, per a study by university.
However, if you are drinking tea for style, tap water will yield the best cup, ensuring it's not too bitter.
EGCG (epigallocatechin gallate) may be a natural antioxidants found in tea, shown to be beneficial for the brain and heart in studies.
Celebrities including Jennifer Aniston are fans of the Asian brew, believed to be an aid for weight loss, energy and stress control.
To conduct the tests, 2.5g of green tea was weighed out into pre-warmed Gaiwan tea brewing vessel with 125ml of water at 80°C (176°F).
The tea infusion was brewed for 3 minutes so strained through a fine mesh filter.
EGCG within the tea infusions was measured by the researchers, and around 100 tea drinkers were recruited to taste the tea.
After giving details on their traditional tea drinking habits, the volunteer evaluated six cups of tea - three black, and three green.
They rated every tea sample on a scale of 1 to 9 for the way abundant they likeable its style and look.
They were conjointly schooled a way to use a selected scale to live the sweetness, bitterness, sourness and earthiness of the brews.
Results showed levels of ECGC within the inexperienced teas were 'drastically reduced' in those brewed with poached H2O. No effect was noticed in the black teas.
The researchers aforementioned this is often as a result of the amount of atomic number 20, metallic element and iron area unit higher in H2O.
Professor Robin Dando, one amongst the authors of the study, said: 'Bottled water is able to extract the EGCG more efficiently.'
He additional this is often as a result of atomic number 20 and metallic element are filtered out of the 'purer' water, and iron concentration is additionally 'brought down a notch'.
Professor Dando added: 'With purer water, you get additional health advantages out of the tea.'
Consumers likeable tea brewed mistreatment H2O over mistreatment drinking water, because it produced a sweeter taste.
But there was hardly any distinction in tea brewed in either H2O or drinking water.
The findings were published in the journal Nutrients.
'The average shopper for tea is not ready to tell the distinction,' aforementioned lead author Melanie Franks.
'Whether it absolutely was H2O or drinking water, the style variations area unit too refined.
'Since tea has fewer catechins than tea thanks to the oxidisation method in producing, the sort of water used looks less significant to the everyday tea drinker.'
Jennifer Aniston 'drinks green tea throughout the day,' according to an interview with The Telegraph.
Green tea, that originated in China and is created from bush leaves, may be a well-researched space.
ECGC has been found to preclude or slow the progression of presenile dementia in an exceedingly 2015 University of Missouri study, once combined with physical activity.
But alternative elements found in tea - caffein, amino acid L-theanine and other catechins have shown possible health benefits in studies.
These embrace lower steroid alcohol, a lower risk of degenerative disorder and even cancer. They have also been shown to boost metabolism.
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