Grandma's tip agains the smell of fish

If you buy fresh fish, that fish should not smell at all, as it would not be fresh. However, sometimes the fish still smells as it was just caught recently.
In order to get rid of this smell and after cleaning the fish, pour hot milk over the fish and let it sit for a few minutes. After that rub the fish with some lemon inside and out. The smell disappears, you can also use vinegar to clean the fish with the same results.
When you fry the fish in a pan, the intense smell usually comes from the oil which is too hot. Just lower the temperature. This way the whole house will not smell like a fishhouse.