Absolutely science for hire is a real thing and even unconscious bias is dangerous, but the scientific method is based on reproducibility and predictive power. Important results will get tested and picked apart and studied over and over. It might take time to arrive at a really solid conclusion, but the only way we have to fight bias and error is to repeatedly compare our ideas to reality. That’s all science is.

In this case, it seems like a claim that most table salt contains micro plastics should not be a very hard result to refute or reproduce. Usually scientists will avoid making claims that they aren’t really sure of and are easy to disprove.