Hebrew national is really kosher, however, a large number of Orthodox Jews have lost faith in Hebrew national, after a scandal in the early 1990s. Part of the problem stems from the fact that Hebrew National used to be certified by the Orthodox Union, and now it's certified by Triangle K, a lesser known company.
There is also a misconception by some that Hebrew national meats contain lactic acid (a milk derivative), which is not the case. Hebrew national products contain sodium lactate, a salt that is non-dairy, and all Jewish authorities accept it as non-dairy.
for more information about Hebrew National's strict Kosher policy, see http://www.hebrewnational.com/about-kosher
It has to say "Kosher for Passover" on the label.
Only if it is labeled as such.
Yes.
Kosher for Pesach (Passover) food is marked as such on the package label. Markings include a P incorporated into the hechsher, the words 'Kosher for Passover' in English, and 'Kasher l'Pesach' 'כשר לפסח' in Hebrew.
Hebrew National is a Kosher company, so no pork is used in any Hebrew national product.
It would have to be certified kosher for Passover.
The label has to say "Kosher for Passover"
Yes, only if they are specifically certified kosher for passover. You can find kosher for Passover olives at any Jewish supermarket
It can be, it would require a valid Passover hechsher.
Yes, it can be since it is made from wine, which can be Kosher for passover if created under appropriate supervision. The bottle would require a kosher for Passover hechsher.
If you were able to find corn vinegar that is certified kosher for Passover, it would be kitniyot which means that the majority of Ashkenazi Jews would not use it.
There are kosher food companies that are now making gluten-free products Kosher for Passover and all-year-round. However, something being gluten-free has no bearing on whether or not it is Kosher or Kosher for Passover.
Arugula is an edible leaf and is kosher year round including Passover.
Yes, they must be certified kosher for Passover though.
Yes, there are no restrictions on fruit for Passover.