The UK Food Standards Agency has issued warnings to importers on produce coated with wax containing morpholine as a carrier for glazing agents. The warning is primarily directed at apples since apples are most often consumed without peeling.

Attached below is a file of FSA documents on the morpholine warning.

 The Material Safety Data Sheet (MSDS) for morpholine is available at:                                  http://www.sciencelab.com/msds.php?msdsId=9927366