Quality of Shellfish

Zebra Mussel
© Department of Environment, Heritage and Local Government

Shellfish production areas in Ireland are categorised based on the level of treatment that shellfish require prior to being sold. The best category (Class A) is where shellfish can be sold directly with no pre-treatment. Class B requires purification for 48 hours, while Class C is the lowest category and requires the shellfish to be relayed in clean water for a two month period. 

The most recent list of classified bivalve mollusc production areas in Ireland can be found here.