4721 The Moulding of Ices

The mixture when frozen and ready can be scooped out in round shapes and arranged on a serviette as was once the custom, or placed in glass dishes. But more often it is filled into special moulds which have a lid that can be sealed hermetically. These moulds must be filled carefully and banged gently on a folded cloth so as to pack it closely and remove any air which would otherwise leave holes in the mixture. The filled mould is covered with its lid and then sealed by spreading a line of butter around the outside, over the join, so as to prevent any contact with the salted water coming from the melting ice. Finally, the mould is placed in a suitably large container for it to be surrounded with salted crushed ice, as for freezing in the ice-cream machine. The mould must be left in the ice for at least one hour for an ordinary ice, or at least 2 hours if it contains a light ice mixture that has not been frozen beforehand, such as for Bombes, Parfaits etc.