It's not for Passover!
Some people feel like having matza-like crackers the rest of the year, so some matza companies said -- hey, let's make more of our stuff, but we don't have to be careful about baking it so fast, or keeping the flour dry in advance, or all that complicated stuff. Hence, "not for Passover matza", which yes, technically is not &...
This whole concept points back to Lev. 11:43:
אַל-תְּשַׁקְּצוּ, אֶת-נַפְשֹׁתֵיכֶם, בְּכָל-הַשֶּׁרֶץ, הַשֹּׁרֵץ; וְלֹא תִטַּמְּאוּ בָּהֶם, וְנִטְמֵתֶם בָּם.
"Don't eat any of these creepy-crawlies ... you will become impure due to them." The word venitmeitem is spelled missing an alef.
The simple reading is that it's the same, tamei. From a strict ...
The Rambam writes (MT Chametz u Matza 1:1)
Anyone who intentionally eats an olive's size of
chametz on Pesach [...] is liable for kareit [...] [The above
applies] equally to one who eats chametz and one who converts it into
a liquid and drinks it.
So the question becomes how much whiskey contains an olive's worth of barley. According to this site, it takes ...
So it would seem that there is really no reason one could not use such
food on Pesach. And yet, I am sure that everyone would agree it may
not be done. What am I overlooking?
The first part of your statement was correct. You can actually use this food on Pesach if the cutting board and knives were clean and you are sure no hametz was around and ...
The Talmud (Chulin 11b-12a) seems to assume that no one can be a complete vegetarian.
אמר רב אשי אמריתא לשמעתא קמיה דרב כהנא ואמרי לה רב כהנא קמיה דרב שימי ואמר ליה ודלמא היכא דאפשר אפשר היכא דלא אפשר לא אפשר דאי לא תימא הכי לר״מ דחייש למיעוטא הכי נמי דלא אכיל בישרא וכי תימא הכי נמי פסח וקדשים מאי איכא למימר
R. Ashi added: I put forward this argument to R. ...
In a discourse on Shabbos Shemini 5716, the Lubavitcher Rebbe recommends three different approaches to deal with Timtum Halev (the state of insensitivity in which one’s heart is dull and unresponsive to his contemplation of G-d’s greatness):
“A wooden beam which does not catch fire should be splintered, and similarly, a body into which the light of the soul ...
If your question is understood properly, being careful to consume only chalav Yisroel dairy products would be the appropriate response.
Although I don’t have the sources in front of me at the moment to give specific references, this is discussed both in Igrot Moshe (the responsa of Rabbi Moshe Feinstein) and in the Igrot Kodesh of the Lubavitcher Rebbe.
The Mishna Brura (318:4) brings the Magen Avraham in the name of the Rashba that even the pot in which one cooked on Shabbat becomes forbidden for the person who cooked because it has absorbed (the flavor of) a substance that is forbidden for him (in the case one cooked for a healthy individual, not if done for a sick person).
Mishna Brura Ohr Olam (p. 10, ...
It is forbidden to cook in a pot once you know it is non-kosher but, after the fact, one can eat the food. The Shulchan Aruch (YD 122:2) writes (Sefaria's translation with my slight adjustments)
A vessel which is not ben yomo, meaning that the vessel has sat for 24
hours since prohibited substance was cooked in it, this gives a
detrimental taste, but even ...