"8633" series mainly uses 3rd grade tea materials according to blend recipe initiated in 1986 year and produced by XG with serial number of 3 in CNNP group when it had long been a national organization in last century.
Slight smoky flavor is lighter than most tuo cha also from XG.
Decent sweetness with smoothness.
Minor bitterness and astringency.
Little plum like flavor well gives irritation to saliva producing.
Mellow and some soft mouth feeling.
Guangzhou natural storage.
"8633" has variation on general cake and iron cake. Iron cake called as T8633 which is very hard pressed and quite difficult to pry and dissolve in boiling water. But iron cake well preserves the original fragrance from tea and the slower processing also good for producing plum like flavor and preferred by many tea drinkers.
There are hints of the strorage in the first cup. Very small touch of bitter hardly there. A little drying that goes fairly to sweet quickly. Second cup brings more of the bitter note that rounds the corner with some camphor and mintiness hiding in there as well.
I don’t get the thickness as I do with some teas but this coats the mouth and feels a bit slippery for a few seconds on the tongue. Some mintiness but the Camphor on this is really nice. Good to find a tea that has some storage that doesn’t wash it out completely. I am probably getting the bitter as a harder hit since I was brewing the scraps of a few cakes up. Def a good one if you want to explore puerh a bit more.