Question:
If I would want to be super careful with Kalei Habishul, does the concept of kli revii exist or does every cup after kli shlishi also have the halachik status of a kli shlishi?
Answer:
Hello,
If you want to be extra machmir with things are known to be klei habishul you may, as there are opinions that say this.
Best wishes
Sources:
ב"ח ס' שי"ח ס"ק ז', "דאין חילוק בין כלי שני לשלישי ורביעי", הו"ד בפמ"ג (מש"ז ס"ק ט"ו, ס"ק י"ז, א"א ס"ק ל"ה), חוט שני (ח"ב עמ' קפ"ד ד"ה ולפי, "ה"ה דאסור אפילו בכלי רביעי וחמישי" שבת במטבח (ארטסקרול, עמ' ל"ב), זכור ושמור (דפו"ח, בישול עמ' קי"ט).
Additional reading:
- Putting food on a hot try with a timer only going on a few hours into Shabbos
- Aluminum lining for CROCK POT USED on SHABBOS
- Adding meat to cholent on Shabbos
- Eating food that was placed in the oven on Shabbos
- Replacing pot on fire on Shabbat
- Is it allowed to use soup powder, to make soup on Shabbos
- Heating up food on Shabbos