Hardening and storage.

CFR · 2024-01-01 · US · Title 7

Immediately after the semifrozen product is placed in its intended container it shall be placed in a hardening tunnel or hardening room to continue the freezing process. Rapid freezing to 0° to −15 °F is desirable to produce a good textured product.

official document · source cfr-2024 · id 7:§ 58.641