Originally Posted by
oskar
No way I would use this regularly. A lather bowl is a hygiene item, and the idea of its walls being porous and unglazed sounds messy - on the long run. Of course the water takes a while to make it through the clay, lather making is not affected.
The drawback is that the water also takes a long while to get out of the clay after use, and it will leave whatever lime or other solvable and minute ingredients (and soap) is in it - in the pores. There it will build up eventually and look, well, unsavoury, to say the least.
Get stoneware, that is unporous even without a glaze. Or take this to your local potter who makes earthenware, and have him line the inner pot with a glaze and fire it (but this solution is not quite safe because the firing temperature would have to be the same as the one used for the original glaze). Or take it to your local potter and have him make you a stoneware copy. Stoneware lasts thousands of years - this won't.
Greetings
oskar