If you like fish or steak you need to learn how to cook sous vide. There is a cooker on sale at amazon and it is a good one. There are other models if you like a product with more features but this one is good and easy to use. It comes from a well known brand. I cook my steaks at 145F for 1 hour per inch of steak. You cook to the temperature that you like the steak done from 125F to 150F. Cooking fish is usually 135F for 30 minutes. Try different temps and times for tenderness. It is fun to try out. I vacuum pack the food with salt, pepper and garlic powder. You can use a ziplock bag in a sink of water or get a vacuum appliance.