Uktzin 2:5-6

Uktzin 2:5

If one chops food for cooking, even if he doesn’t completely separate the pieces, they are no longer considered connected. If he cut the pieces to pickle, to boil or to set on the table, then they’re still considered connected. If he started to separate the pieces, the part that he started to separate isn’t considered connected. Nuts that were strung together or onions that were piled together are considered connected. If he started to shell the nuts or to peel the onions, they’re not considered connected. The shells of nuts and almonds are considered connected (even when broken) until they’re crushed.

Uktzin 2:6

The shell of a soft-boiled egg is considered connected until it cracks; that of a hard-boiled egg is considered connected until it is completely broken. A bone with marrow is a connective until it is completely crushed. A pomegranate that was split in two is a connective until it has been hit with a stick (to separate it from the rind). Similarly, the loose stitches used by launderers to attach garments and a garment that has been sewn together with shaatnez thread are considered connected until one starts to separate them.