The parallel production of genetically modified and non-GM food is practical without major precautions, claims a report from the European Commission's Joint Research Centre (JRC).

The European Union (EU) scientific unit says that accidental contamination of non-GM seeds with genetically modified material can be limited to 0.5% with no changes in production methods for sugar beet (and cotton) and small changes in maize husbandry.

Current methods include isolating GM fields by ringing them with non-GM buffer strips and using GM varieties with different flowering dates to non-GM varieties. Under existing EU rules, non-GM seeds are allowed to contain up to 0.9% GM material.