As a general rule I thought you don't put food in the fridge until it has cooled down to room temperature at least. So when I make up ds's bottles we leave them out for about 40 minutes until putting them in the fridge. But Penelope Leach says "Cool made-up milk quickly, preferably by putting it into
the body of the fridge while it is still hot". So should I be putting the bottles straight into the frdige after preparing them?