Just that really. I'm about to start weaning (4 months) and it says to use an ice cube sized amount but the jars are blimin expensive and much bigger. (Yes I could make my own food and I intend to but to start I'd like to use ready made to get a feel of what he does and doesn't like) so can you portion off the contents of a jar and freeze to use as and when rather than throwing away most of it?