The Ministry of Education plans to issue an order making many schools nationwide cannabis-free zones following the plant's recent decriminalisation.

Education Minister Trinuch Thienthong said every school affiliated to the ministry will be declared a cannabis-free zone and the ministry must ensure teachers and students understand the pros and cons of consuming cannabis.

A discussion will be held with the Public Health Ministry's Health Department on any potential side-effect of using cannabis as an ingredient in food and beverages including cookies, bread and juice.

Later, the Office of the Basic Education Commission (Obec) will strictly contain the use of cannabis in schools, with standards to certify its use as an ingredient in food and drinks, she said.

The move is supported by Bangkok governor Chadchart Sittipunt, who said schools affiliated with the Bangkok Metropolitan Administration (BMA) have a responsibility to ensure students have a more complete understanding about cannabis.

Since cannabis has been delisted from the narcotics list, parts of the plant can now be used for medicinal use.