There is no minhag not to eat processed food. The minhag (for hundreds of years) was not to mish and therefore not eat foods not produced in your home. Obviously processed foods fit under this long standing minhag.
There is no minhag not to eat processed food. The minhag (for hundreds of years) was not to mish and therefore not eat foods not produced in your home. Obviously processed foods fit under this long standing minhag.