Rain-Water. Not only is rain-water the best for making tea, etc, but it is useful in culinary operations. The belief that it is unwholesome for this purpose is incorrect. The softer water is, the more adapted it is to all domestic uses, if we except that one which has been so much insisted on of late - its use as an habitual potation; even this is not an exception, so much on account of its unwholesomeness as its insipidity.