Cold storage 1 to 2 days, freezing 1 to 3 months, you can rub some salt and cooking wine on the cleaned flounder, and then put it in the refrigerator. Cold storage can be kept for 1 to 2 days, while freezing can be kept for about 3 months. The function and efficacy of Duobao fish beauty beauty, tonify kidney and brain, and help yang to refresh. How to choose a treasure fish Choose a fish with clear eyes and bright red gills. The fish should be firm and elastic, not soft.