After you have assessed the risk of cross contact with allergens, and where possible eliminated or reduced the risk, you need to decide whether or not precautionary labelling is appropriate. You should only use precautionary labelling where there is a demonstrable and significant risk of allergen cross-contact. You should never use precautionary labelling as a substitute for Good Manufacturing Practice.
Several of the national guidelines provide detailed advice on how you can communicate the allergen risk to you consumers via the product label. Allergic consumers need ingredient information, which is easy to find, read and understand and where any allergen cross contact, which has proved impossible to control, is made clear. Most of the guidelines recommend to use simple phrases such as “May contain X” or “May be present: X” for precautionary labelling.
In addition to communicating with your consumers via the label you may choose to provide additional information via a consumer careline. You are welcome to print out and use the pdf file: Food allergy guidance notes for consumer careline staff.