This is a schematic process flow diagram of the processes used in a typical oil refinery. This process flow diagram (PFD) example was redesigned from the Wikimedia Commons file: RefineryFlow.png. [commons.wikimedia.org/wiki/File:RefineryFlow.png]
When can my baby eat shellfish? Shellfish can be a healthy part of your child's diet soon after she begins to eat solid food, usually when she's around 4 to 6 months. But if your baby has chronic eczema or a food allergy, talk to the doctor first before giving your baby shellfish.
Generally, it's best to eat them within one or two days (assuming they are kept refrigerated), but definitely before they die. Check for signs of life before preparing for consumption, and discard any dead shellfish (those with shells that do not close after lightly tapping them).