Molluskitel peavad olema nähtavad värskuse ja eluvõimelisuse tunnused, k.a. puhtad kestad, reaktsioon perkussioonile ning normaalne valvulaarvedeliku hulk.
Live bivalve molluscs intended for immediate human consumption must comply with the following requirements: 1. The possession of visual characteristics associated with freshness and viability, including shells free of dirt, an adequate response to percussion, and normal amounts of intravalvular liquid.