TRADING standards officers have been carrying out tests in supermarkets across Somerset to ensure no genetically modified rice is on sale.
A batch of GM rice has been imported into the UK from China and the officers are keen to keep it out of the county.
GM rice does not have approval for sale in this country, but the market is suffering a shortage due to price rises and high demand from retailers, who are limiting the amount they sell to each customer.
Councillor Henry Hobhouse, Somerset County Council's portfolio holder for community safety, said: "Due to the current demand for rice from across the world, some producers are keen to produce GM rice to meet demands.
"Somerset County Council is carrying out tests to make sure none of this rice reaches consumers in Somerset.
"Somerset businesses can help by checking with their suppliers that their rice is certified as GM free."
New rules require all rice imported from China to be tested to ensure no GM is present.
The county council introduced a ban on growing GM crops in Somerset in 2003.