Its strange to be dreaming of mint tea as this is a very specific type of tea. You would be an ardent lover of mint tea, to be dreaming of it. If you drink mint tea every day, then this image would be prominent in your brain and when a combination of factors trigger, you would dream of mint tea.
If you have specific memories linked to mint tea, then dreaming of this tea would mean these memories were triggered by something that happened in your life in the day before you fell asleep and dreamed this.
