Researchers have failed to find a link between drinking coffee and developing ovarian cancer.
Writing in the British Journal of Cancer, experts looked at the drinking habits of more than 60,000 post-menopausal women, of whom 280 already had ovarian cancer.
Around 165 million cups of tea are drank each day in the UK compared wit 70 million cups of coffee.
Women who drank on average four cups of coffee per day had no greater risk of developing cancer than other women.
Drinking three cups of tea a day did not increase the risk of ovarian cancer but had a minimal protective effect.
Study author Leo Schouten said that women should feel reassured that researchers have found no risk of developing ovarian cancer from drinking tea and coffee.
“These drinks are commonly consumed around the world and that is why it is important for us to analyse their relationship with our health,” he said.
Author Greg Martin said: “Several studies have looked at tea and coffee and risk of cancer and the results have been conflicting. That is why this piece of research is important in adding to other evidence which shows that these drinks don’t increase our risk of cancer which will be a big relief to women everywhere.”