Strong tea refers to tea that has a higher concentration of tea leaves, resulting in a more robust flavor and darker color. This type of tea is often brewed for a longer time or with more leaves than usual. Common varieties that can be brewed strong include black tea, green tea, and oolong tea. In many cultures, strong tea is a popular choice for its bold taste and stimulating effects due to the higher caffeine content. It is often enjoyed with milk or sugar, especially in regions like India and the United Kingdom, where it is a staple in daily routines.