instead of heating them up..
how do i go about this for a 5 oz bottle...i.e. how much cooled water to put in first...then when i top it up is the water from a flask? or straight from the kettle? is it boiling when you top it up etc?
If you use a flask is it ok just to use a thermos? how do you know if the temp is correct etc?
Would i need to sterlise the thermos? i'm assuming not as i dont sterlise the kettle
how do i go about this for a 5 oz bottle...i.e. how much cooled water to put in first...then when i top it up is the water from a flask? or straight from the kettle? is it boiling when you top it up etc?
If you use a flask is it ok just to use a thermos? how do you know if the temp is correct etc?
Would i need to sterlise the thermos? i'm assuming not as i dont sterlise the kettle