About this shiur
Practical halachic guidance on kashering for Pesach, including sinks, dentures, and retainers.
A 3 min halacha shiur by Rabbi Daniel Glatstein. Like every video on Lehallel, it was judged and approved under the Lehallel law before it ever appeared — no unreviewed result is ever shown.


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Recently approved from the same speaker: “The Mitzvah of Having Salt on the Table - Mishna Berura Daf Hashavua Siman 167 Seif 5” (16:55) · “Ki Seitzei: Tznius - The Middah that Transcends All” (4:45) · “5 Sharp Divrei Torah on Parshas Ki Seitzei” (10:27).
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What’s said in this shiur
The opening of this shiur, in Rabbi Daniel Glatstein’s own words— taken from the captions, so names and Hebrew terms may be approximate.
Okay, so we're continuing in the halachos of koshering. This comes from the safer Minchas Chinan of Obams we're now going to talk about koshering sinks. Basically the two kinds of sinks you have enamel sinks which you can't kosher. Page Zion and it's in here somewhere. You have enamel sinks that can't be koshered. Basically what you do is you do kosher them and then you cover them with aluminum. And then you have stainless steel sinks. Stainless steel sinks Uh Stainless steel sinks Uh the optimal way of koshering is with Erui Kli Rishon. Basically you take a kettle that's bubbling hot and you pour it on every single square millimeter of the sink which is a very difficult and tedious job. That's the only way to do it. According to the Rama According to Rama you also take a blazing hot stone and you put it in the sink and you put it on every area of the sink. It's not typically done like that. Nowadays you do Erui Kli Rishon, okay? You do Erui Kli Rishon. Now we have very old people in the show right now. Very
Jump to a moment
- 0:00Okay, so we're continuing in the halachos of koshering. This comes from the safer Minchas Chinan…
- 0:31Stainless steel sinks Uh the optimal way of koshering is with Erui Kli Rishon. Basically you…
- 1:02old people in the show right now. Very very old people. What do you do with…
- 1:32had hot barley cholent. I wash them every day. What you do Erui Kli Rishon on…
- 2:04Erui Kli Rishon of hot on your I'm joking. The question is what do What do…
- 2:35Nowadays even adults have retainers. The orthodontists have figured out ways that from age 14 till…
- 3:06You could probably just put it in Efferdent. You know Efferdent is a cleaner and that's…
About Rabbi Daniel Glatstein on Lehallel
10,675 approved videos from 2016 to 2026, 8,906 of them searchable by their own words. Open all of Rabbi Daniel Glatstein’s shiurim →
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Key takeaways
- Halacha — 3 min, by Rabbi Daniel Glatstein
- Approved by the Lehallel judge before appearing — never an unreviewed result
- Watch free during prelaunch on Lehallel
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How To Kasher Sinks For Pesach, Dentures & Retainers3:20
The Mitzvah of Having Salt on the Table - Mishna Berura Daf Hashavua Siman 167 Seif 516:55
Ki Seitzei: Tznius - The Middah that Transcends All4:45Every video is reviewed against one written standard before it can play.



