<ul>
 <li>Can I rely on a Kosher List for products that don't have a hechsher?</li>
 <li>Is there a difference in standards between products that are certified kosher vs. products that are on a Kosher List?</li>
 <li>What is the difference in halacha between Lechatchilah (before the fact) and Bidi'eved (after the fact)? 
How does that apply to products on a Kosher List?</li>
</ul>
Accompanying information is available <a href="https://sites.google.com/view/kashrusbeintheknow/audio-classes/kosher-lists" target="_blank">here</a>

Post Pesach Chametz

Short classes on common kosher questions. 
"... Similarly in our time - the last days of exile - it is necessary for there to be an extra strengthening in the observance of kashrus... as a preparation and introduction to entering into Eretz Yisroel with the redemption through our righteous Moshiach."


- Likutei Sichos, Volume 13, Page 297