Non-usable food items

Hi,

We have defined a category called "muktzeh machmat gufo," items which have no use on Shabbat and which are therefore muktzeh.

This category includes shells, seeds and bones which have no food on them, and which would not be edible themselves for people or for local animals.

This category also includes food ingredients which cannot be processed on Shabbat - flour, raw potato and raw meat, for example.

(Shemirat Shabbat k'Hilchatah 20:26-29)

Have a great day,
Mordechai