+1Chip wrote: I think the biggest thing is slowly raising the temp, not dropping something into boiling water.
Also, the clay appears to not be of the highest quality in the first place.
+1Chip wrote: I think the biggest thing is slowly raising the temp, not dropping something into boiling water.
I have to agree. Think there was just "something" about this one that just couldn't handle the sitch. Seems like a very tight clay body (whether high or low quality, it's moot). Did put them in room temp h2o slowly brought up to a boil. Crack happened maybe 15min into a 30min low boil cycle. Had a towel in the pot to cushion pieces so they didn't knock around. Like I said earlier, the other pieces seem to have survived thus far. Oh well, you live and learn.entropyembrace wrote:During regular use teaware has to accept boiling water being poured into it. I´d consider any teaware which cracks upon being exposed to boiling water to be defective...
It is when, having walked away, you settle down for a 10 minutes look at TeaChat, and 2 hours later rememberChip wrote:
However, I have already walked away and remembered a pot containing Hagi well over an hour later ... rolling boil the whole time. No harm done. Though I would not recommend this.
I am not certain its actually the heat that causes the break, it might be the vibration during the boiling. Anyway, it shouldn't break.entropyembrace wrote:During regular use teaware has to accept boiling water being poured into it. I´d consider any teaware which cracks upon being exposed to boiling water to be defective...
Heat and more specifically thermal shock has taken down many a good (and bad) piece of pottery...edkrueger wrote: I am not certain its actually the heat that causes the break, it might be the vibration during the boiling. Anyway, it shouldn't break.
I agree. I should have been more clear. I was referring to the breaks that occur in seemingly good quality wares.chicagopotter wrote:Heat and more specifically thermal shock has taken down many a good (and bad) piece of pottery...edkrueger wrote: I am not certain its actually the heat that causes the break, it might be the vibration during the boiling. Anyway, it shouldn't break.
http://en.wikipedia.org/wiki/Thermal_shock
Chip wrote:Oh nooooo. Too bad Ambrose!
A cat broke a mass produced cup today, not a huge deal except it was part of a Chinese set. I can't remember last time I broke a piece of teaware. Cats on the other hand ... lots of memories.
That's what I thought too. Chip, the cat-breaker.IPT wrote:Chip wrote:Oh nooooo. Too bad Ambrose!
A cat broke a mass produced cup today, not a huge deal except it was part of a Chinese set. I can't remember last time I broke a piece of teaware. Cats on the other hand ... lots of memories.
Wait!!! Are you saying you've broken cats?!
Wellll ... amazingly no breaking of cats despite their breaking teaware including 2 kyusu and a few cups ...tortoise wrote:That's what I thought too. Chip, the cat-breaker.IPT wrote:Chip wrote:Oh nooooo. Too bad Ambrose!
A cat broke a mass produced cup today, not a huge deal except it was part of a Chinese set. I can't remember last time I broke a piece of teaware. Cats on the other hand ... lots of memories.
Wait!!! Are you saying you've broken cats?!