how long to cook a whole fish
Cooking a whole fish in foil will take much longer, perhaps around 40 - 50 minutes. Calculate 15 minutes per half kilo of fish plus an additional 15 minutes.enerally, calculate 10 minutes baking time per 1 inch (2.5 cm), measured at the thickest part of the fish. Thin fillets usually take 15 minutes, whilst small steaks approximately 10 - 15 minutes.