Mussels store best at 1 to 2 degrees C (34-36 degrees F).
If placing mussels in your refrigerator, cover them with a damp cloth.
Keep the water drained.
Mussels should be kept in original packaging as long as possible before use or display.
Keep mussels from sitting in water.
If handled and stored properly, mussels are good for at least 7-10 days.
Mussels will tend to open if displayed loose under direct light but will usually close if tapped or warmed in hand. The speed may vary depending on time of year or how long the mussels have been out of water.