In celebration of 100 episodes of Responsa Radio, we're re-releasing our favorites with an update from Rav Eitan and Rav Avi at the end of the episode.

Our producer, Jeremy Tabick's favorite is episode #7: The laws of eruv—constructing a sometimes questionable boundary around a neighborhood to allow carrying objects on shabbat—often seem obscure, bizarre, and made-up. But what are the ways in which it makes sense? What are the operating principles behind these laws?

In celebration of 100 episodes of Responsa Radio, we're re-releasing our favorites with an update from Rav Eitan and Rav Avi at the end of the episode.

Our sound engineer, David Khabinsky's favorite is episode #78: A few months ago, one of the largest kosher certification agencies announced that it would not certify "Impossible Pork," despite the fact that nothing in the ingredients or preparation of Impossible Pork is not kosher. What determines whether or not a food is kosher, apart from the ingredients?

I'm planning on going to the total solar eclipse that will be visible in North America on April 8th. is there a blessing or some other liturgy that I should say as I see it?

I was trying to help someone on the street get some food. They asked for a sandwich, so I went into a nearby shop—and suddenly panicked because I realized it was Passover! What was I supposed to do in this case? What are the parameters of buying and touching hameitz for non-Jews during the holiday?

My family are coming in from 1000s of miles away for the eclipse on April 8th, but they won't be around for Pesah on April 22nd. I want to do a mock or model Seder with them, but I know some things are only supposed to be done on actual Seder night. What should I include or exclude? How can I make the mock Seder feel substantive, but at the same time, still a rehearsal and not a replacement of Seder itself?

I'm organizing my community's reading of Megillat Esther. Can I include English explanations or kids' plays between the chapters? What is at stake in breaking up the reading?

In celebration of 100 episodes of Responsa Radio, we're re-releasing our favorites with an update from Rav Eitan and Rav Avi at the end of the episode.

Responsa Radio creator David Zvi Kalman's favorite is episode #9: I'm a lawyer who often has to look at crime scene photos. What are the considerations of k'vod ha-met (honor for the dead) that I should be taking into account in my job?

In celebration of 100 episodes of Responsa Radio, we're re-releasing our favorites with an update from Rav Eitan and Rav Avi at the end of the episode.

Rav Eitan's favorite is episode #27: Can I set up my coffee maker on a timer before Shabbat to make my perfect cup on Shabbat itself? And if I can't do that, can I use a French press on Shabbat to get a better cup than instant?