hans89,
A concern is that the casserole would continue to crack unless reinforced in some way like the wiring on the sappo pots.
Clay and ceramic pots when cooking on a stove top is best for reheating food, but I imagine if you presoaked your grains and beans, you could cook them from scratch, starting with a medium heat followed by a low heat, simmering.
Because Simply Natural does not carry Ohsawa Pots nor yet ships products overseas and I am friends with the owner, I can give you the information privately for getting a Ohsawa Pot shipped directly to you. Just send me an email...
See if you can find one of these in your part of the world:
Heat Diffuser With Removable Handle or
Flame Master which are comparable with the
Kuhn Rikom Flame Tamer and the
Simmer King heat diffuser/flame tamer!
Having owned a Simmer King many years ago, and used a Flame Master for many years since, I now use the Heat Diffuser with Removeable Handle!
Are you in (Koninkrijk der Nederlanden)
The Netherlands or (Bundesrepublik Deutschland)
Germany?
Thank you, very much.
Bruce Paine