Anyone shopping for a Yixing teapot runs into the same wall. Two pots look almost identical, share a shape and a size, and one costs $275 while the other costs $1,300. The difference is almost always the clay.
We grade our zisha across five tiers: Bronze, Silver, Gold, Jade and Diamond. Here is what each one actually changes in the cup.
What is a Yixing clay grade?
A clay grade describes the quality of the raw zisha ore: how fine the particles are, how dense the fired body is, and how long the material was aged before it was worked. Higher grades come from scarcer seams, are more difficult to throw, and produce a denser pot that interacts more actively with the tea. The grade is not decoration. It is the single largest factor in what a pot does to your brew.
The five grades
Bronze
Our entry ore, and the honest workhorse of the range. Bronze pots are properly made from real Yixing zisha and season well over time. They round out the tea and soften edges, which is why we rate them at four stars for smoothness. Best for: a first Yixing pot, daily drinking, and anyone who wants to learn on a pot they will not be precious about.
Silver
Finer particles than Bronze and a noticeably denser body. The step up shows most in refinement, where the liquor comes through cleaner and better defined. Best for: drinkers who already know what they like and want more clarity from the same tea.
Gold
A significant jump. Gold ore is scarce enough that some seams have their own names, such as the "shark skin" zini we use for certain pots. Aroma lifts markedly here, and refinement with it. Best for: fragrant teas where aroma is the point, such as yancha and dancong.
Jade
Where Gold lifts aroma, Jade builds body. The liquor gains thickness and weight in the mouth, and the tea feels more substantial without becoming heavy. Best for: aged sheng puerh, liu bao, and any tea whose pleasure lives in its texture.
Diamond
The finest and densest ore we list. Diamond pots score at the top across aroma, refinement and depth of body. They hold heat exceptionally well, deepen in colour and lustre faster than any other grade, and reward daily use over years. Best for: collectors, and for the teas you save for the good days.
Does clay grade really change the taste?
Yes, and more than most people expect. A denser body holds heat more steadily through the infusion, which changes extraction. Unglazed zisha is also mildly porous, so it absorbs a little oil from each brew and gives some back, and finer clay does this more evenly. Brew the same tea through a Bronze pot and a Diamond pot side by side and the differences in aroma and texture are unmistakable.
Which grade should I buy?
If it is your first Yixing pot, buy Bronze and buy the shape you like. Learning to brew well matters more than clay grade, and a Bronze pot brews very good tea. If you already brew confidently and drink one category of tea seriously, move up the ladder in the direction your tea rewards: Gold for fragrance, Jade for body, Diamond for both. Buying a $1,300 pot before you have found your tea is the wrong order.
One tea, five clays
The only way to truly hear the difference is to taste it. We occasionally offer a set of five teapots in the same shape, one in each grade, made by the same hand, so that clay is the only variable. If you have ever wondered what the grading system actually means, brewing one tea through all five answers the question in an afternoon.
Questions about a specific pot or a specific tea? Write to us. We have been sourcing these pots for a long time and we are always glad to talk.