Well yea I would think so. There was this guy who kept his starter in a ceramic container with a seal. If it is sealed it will build up pressure and explode. any one who knows anything about ceramics knows that the last thing you want is pressure. That is the whole reason for treating it with firm hands to make sure it has no air pockets in the clay when you fire it. Then there is some that forget about the fact that in some climates you can’t capture yeast. I made my starter with a pinch of instant yeast. The less the better. It is that famous bible verse that talks about only a little bit of yeast will make the bread rise.
When I tried capture yeast I got nothing but the wrong bacteria. Smelled really bad afterword
