Food and drink may be allowed in the examination room at the discretion of the head of centre. However, any food or drink brought into the examination room by the candidate or the centre must be free from packaging and all labels removed from drink containers. To enable invigilators to check these items quickly and efficiently: 

• food brought into the examination room by the candidate must be free of packaging and in a transparent container
• drink bottles must be transparent with all labels removed which would include transparent, reusable plastic bottles 

(Section 18.2)