My Malaysian friend and I had bought this tea 5 years ago at a Malaysian teashop. We had sampled this and found the tea to be very strong but new in 2012. My friend and I decided to buy a carton each for slightly better price.
I met this friend early this year and he was quite excited over this tea. He had been sampling this tea every 6 months since our purchase and he found that this tea had 'turned' this year. The term 'turned' is just a name used among my Malaysian friends that described a pu erh tea that seem to mature/age significantly or suddenly. Let me explain. There are some pu erh tea that, when you had bought them and stored them away, the taste and aroma do not seem to change for a few years since the purchase. I had noticed that, there are some pu erh tea, when they turned about 8-10 years old, will taste and smell slightly different. The mellowness and smoothness of the tea seem to be more pronounced. There is a mature taste in the tea as well.
I have a old Chinese tea collector in Guangzhou, that had explained to me his thoughts; that pu erh tea will change in both taste and aroma in phases, about 10 years per phase. He claimed that the 2nd phase would see the pu erh tea take on a more medicinal character in the brew. I had tried a few of his much older cakes as well as 20 year tea cakes at teashops and I can attest to some medicinal aroma in these tea.
This 'turning' phase is something that many pu erh tea drinkers and collectors look forward to when they store and age their pu erh tea. The pu erh tea may become more floral or more herbal or even may developed a camphor aroma in the tea after some time in storage. These changes in both aroma and taste, in my opinion are due to the tea leaves and the storage conditions of the tea. When you and I buy older pu erh tea, we are also indirectly buying the time as well as buying the storage of the tea.
De He Xin is a well known teamster in China. He had produced a raw (this tea) and a ripe pu erh tea cake in 2006. This tea, as described in the note enclosed with the cake, are composed from Bulang region. De He Xin had also had this tea certified that it met the organic label requirements. I do admit that the tea had 'turned'. The tea is now more vivid in both taste and aroma.
What do I advise a few of my readers that had posed me a question about whether to store away tea for 10 years or buy a 10 year old pu erh tea outright. My answer, do both if possible. I find that pu erh tea stored in various countries like Malaysia, Hong Kong and China will have their unique storage characteristics that cannot be easily replicated in a home if you stay in a temperate country( your tea will have its own unique storage result). For me, that is the fun in trying all these pu erh tea and having an adventure in every cup.