I've just seen the previous thread about making up formula feeds and now I'm getting nervy. I make up my bottles by using a brita filter kettle. I boil the water and usually make up the bottles around 1-2 hours later when the water has cooled down. I sterilise bottles in the microwave and either fill them up and stick them in the fridge, or if my husband has used the kettle to make a cup of tea before they have been filled (this happens less and less now!) then I'll put the empty sterilsed bottles in the fridge and then fill them when the water has boiled and cooled again. If I put the water in the bottles any earlier, won't the heat damage the fridge?