%copy is just a shallow copy. That means, it shares the references to all { drinks => ... } hashes with %hash. If you want to do a deep copy that copies all values and all referenced data structures, have a look at Storable::dclone:

my %copy = dclone(\%hash);

[download]

should be all you need.

In reply to Re: hash ref mind blow by Corion
in thread hash ref mind blow by Anonymous Monk

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