To make olive leaf tea, warm water in a saucepan. For any good cup of tea, water is a key component. Use filtered tap water if possible and bring it to a boil. 

Thereafter, reduce the heat as boiling the leaves for too long can burn them. Burning the leaves will not only impact the overall taste of the tea but will also reduce the antioxidant polyphenol count. 

The ideal steep time for this tea is 3-8 minutes. If you allow it to steep longer than that, the tea could turn bitter. And if you allow it to steep for less than that, it will have a mellow flavor. 

You can also bring down the bitterness of the tea by squeezing a slice of fresh lemon or adding milk, stevia, honey, sugar, and other herbal flavorings such as peppermint. Serve the tea hot!