New research reveals the taste of fish

Geosmin and 2-methylisoborneol occur naturally in lakes and watercourses, but excessive concentrations of these two substances can give fish a ‘muddy’ taste.

The results do not apply exclusively to rainbow trout. Credit: Mary Smith/Marine Photobank

Geosmin and 2-methylisoborneol occur naturally in lakes and watercourses, but excessive concentrations of these two substances can give fish a ‘muddy’ taste.