Numi s Aged Puerh Tea Brick is a compressed bar of loose Puerh tea leaves. Unlike traditional teas that are oxidized for 8 hours, Puerh undergoes a unique 60-day fermentation process resulting in a bold, earthy flavor with hints of malt and elevated levels of antioxidants. Puerh is compressed into bricks and aged, like fine wine, for months, years or even decades. This increases its value, health benefits and premium taste.