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玻璃壺

觀看水的甦醒 — 從寂靜到沸騰

硼矽酸鹽玻璃揭開了百年來隱形的儀式面紗。當熱能穿過玻璃,沸騰的每個階段都成為感官的停頓 — 魚眼、蟹眼、一串珍珠 — 幫助你抓住茶葉所需的精確溫度。無金屬、無塗層,只有水與火焰完美呈現。

為什麼硼矽酸鹽壺值得在茶廚房佔一席位

硼矽酸鹽玻璃於二十世紀初作為實驗室新奇物登場——耐熱、化學惰性、耐衝擊,足以從火爐移至冷卻台而不破裂。茶人很快意識到科學家早已知道的事:透明就是控制。當你看不見水,就錯過了熱與茶葉之間的對話。玻璃壺將這對話變成可見的弧線。中國茶傳統為沸騰的各階段命名——蝦眼(70–80 °C)、蟹眼(80–85 °C)、魚眼(85–90 °C),以及滾沸時的一串珍珠(95–100 °C)。每一種水溫為不同的茶類解鎖:蟹眼適合綠茶,魚眼適合烏龍,全沸適合普洱茶。除了溫度,玻璃拒絕在水中化學留下指紋。不鏽鋼可能輕微改變pH值;玻璃則保持中性。這在你從頭開始調配水質或調校一款細緻的白毫銀針時就很重要。前往 thetea.app 的「泡茶水」百科條目閱讀完整的化學故事,或加入我們 tea.school 的「第六味——水」課程,了解溶解氣體與礦物質如何形塑每一泡茶湯。製作我們這些壺的柳州工坊以手工打造硼矽酸鹽,塑造出可在瓦斯爐、電磁爐(需用擴散板)和電熱線圈上平穩擺放的圓壺。輕盈但堅固,這些壺從爐灶移動到工夫茶盤上,帶著一種一輩子專注做好一件事的工具才有的寧靜自信。

來自柳州工坊——三種容量,應付每一種火源

每一把明火用硼矽酸鹽壺均由 Gao Liuzhou 手工成形,這位玻璃吹製師的工作室坐落在廣西的石灰岩山巒之間。簡單、真誠、沈靜之美。

A buyer's note

Choosing your glass kettle — a buyer’s checklist

硼矽酸鹽玻璃,非普通玻璃

Look for high thermal shock resistance. Borosilicate can handle stove heat and quick cooling without cracking, unlike tempered soda-lime glass.

手柄人體工學

An angled, heat-resistant cork or bamboo handle keeps your hand away from the spout and balances the kettle when pouring.

蓋子密合度

A well-fitted lid with a small vent hole prevents steam spurting and keeps the boil visible without dancing off during a rolling boil.

電磁爐相容性

If your stovetop is induction, confirm the kettle works with a diffuser plate or look for a model with a steel base insert.

壺嘴出水

A narrow, curved spout gives gongfu-level control. A wider spout suits everyday brewing but sacrifices precision.

清潔與保養

Use soft sponges and a vinegar rinse to remove water scale. Avoid sudden cold-water shocks while the kettle is hot.

Common questions

Asked, answered.

Can glass kettles go on a gas stove?

Yes, all our borosilicate kettles are designed for direct gas flame. Use a diffuser plate if the burner is very small to distribute heat evenly.

Will a glass kettle work with an induction cooktop?

Glass alone does not heat on induction, but you can use a stainless steel diffuser disc under the kettle. Some models have a steel base for direct induction use.

Does boiling water in glass affect the taste?

Glass is chemically inert and leaves no metallic aftertaste. It’s one of the few materials that won’t alter water’s pH or texture.

How do I clean mineral buildup inside the kettle?

Fill with equal parts white vinegar and water, bring to a gentle boil, let sit 20 minutes, then rinse thoroughly with soft water.

What’s the best size for gongfu cha?

The 0.8L kettle is ideal for solo or two-person gongfu sessions; 1.2L covers a small gathering without constant refills.

Is borosilicate glass breakable?

Borosilicate is highly resistant to thermal shock, but it’s still glass. Avoid dropping it and don’t plunge a hot kettle into cold water.

Can I leave water in the kettle overnight?

It’s fine for a day, but regularly emptying and air-drying the kettle prevents water stains and keeps the spout clean.