咖啡壶垫圈使用什么材料？

最常见的材料是丁腈橡胶，但也有硅胶材质的滤水壶垫圈。丁腈橡胶滤油嘴垫圈的缺点是随着时间的推移会变脆变硬。而硅胶滤网垫圈不会出现这种情况。但硅胶滤油嘴垫圈的价格要高得多。

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