Best teapot for keeping tea warm?

[fitzkotlr]

I'm only referring to heat retention capabilities, not flavor. Yixing over cast iron? Ceramic?

[Warden Andy]

Definately cast iron. Yixing also holds heat well, but it wouldn't be the best option unless you are going to brew gongfu.

[fitzkotlr]

Thank you!

[Mary R]

Now, I love my tetsubin. I hope it will outlast me because I sure can't see myself without it. That being said...I think they need some additional guns when it comes to holding heat. Sure, they're cast iron. And cast iron is great for heating quickly and evenly--and yes, holding a good bit of that heat for a period after removal from the heat source. But once a bit of chill sets in...it's a quick trip to tepid.

I think that if you bother to pre-heat a ceramic pot...and maybe use a cozy of sorts...a good ceramic pot would beat out a tetsubin. I should probably test that theory sometime.

[tenuki]

I have a beautiful cast iron tea warmer (powered by a tea light) that I set my tetsubin on to keep my green tea warm.

Best way I've found yet to keep my tea warm.

It was a gift, but I think my wife bought it at teavana. Did I mention it was beautiful?