Why does a wood-fired black cerammic Jianzhan cup emit a dusty smell when hot water is poured in?
#Blackceramic #Jianzhan #QA #黑瓷建盞答疑
Why does a wood-fired black cerammic Jianzhan cup emit a dusty smell when hot water is poured in?
Possible reasons:
- Wood-firing residue: During wood firing, burning wood may leave trace ash or charcoal particles on the surface or in the pores, releasing a dust-like smell when heated.
- Incomplete sintering: If the firing temperature or duration is insufficient, the porcelain may not be fully sintered, and impurities release odors when heated. (Wood firing reaches 1300°C, so this factor can be ignored.)
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Storage environment: Long-term storage may cause the cup to absorb dust or impurities from the air, activated by hot water.
Solutions:
- Wash several times with warm water, soak with a little white vinegar or tea leaves to remove residual odors.
- Before first use, boil and clean thoroughly to eliminate impurities.
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Ensure a dry, well-ventilated storage environment to prevent odor absorption.
