May one squeeze unripe grapes (boser) into food on Shabbat?

ShabbatSechitah

Synopsis

Disputed: one opinion permits squeezing unripe fruit into food, while Rabbeinu Tam prohibits it because the unripe fruit is not fit for eating, making it like separating food from waste.

Rishonim
Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

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