Taetea's (aka Dayi) 8582 raw pu erh is one of Dayi's flagship tea that is produced almost every year. Not as well known as the famous 7542 cake, this 8582 is a quiet favourite among Dayi's tea drinkers and collectors.
For those newer tea drinkers of pu erh tea, there are famous pu erh cakes that are named as numbers rather than a 'proper name'. A 4 digit number is named for the various cakes. You will actually asked for the cake by this '4 digits' when you are at the tea shop. The teashop will also then tell you which vintage year of that tea they have. Sound complicated. It is not. You can even sample the tea (at tea shops in China, Hong Kong and Malaysia) before you make your purchase.
As mentioned, 8582 is actually a popular pu erh tea. The tea when brewed has a very good herbal taste and aroma in the tea. There is a nice faint sweet finish and a nice warming sensation after a tea session. A few of my Malaysian tea drinker friends actually prefer the 8582 to the famous Dayi's 7542 as the 8582 has a stronger emphasis on dry medicinal herb aroma and taste.
It is my opinion that if you intend to drink a 8582, look for the older cakes (its not that expensive) as the mellowness after a few years of storage does make this tea more smooth and delicious.