Kashrut Conundrums
What’s the proper way to deal with a situation like this: you have been told by your local vaad hakashrut that a certain hechsher is not reliable and any food products certified with it are not recommended. Then you go over for a Shabbat or Yom Tov meal to the home of someone who is seemingly very observant. And you discover they are serving you a product under that hechsher, along with lots of other food prepared on the same kelim. And they insist it is all kosher. This is a situation I have found myself in before.
Answers
It is impossible to answer your question definitively without being familiar with the various Kashrut authorities involved. In general, the best thing to do is to ask a local expert who is not aligned with either Kashrut authority what you should do under such circumstances.
Best wishes from the AskTheRabbi.org Team