to this
In Soviet times, the nodes of industrial machinery were open - insects or rodents could get into the meat-cutting machine. Now the whole process is automated, the nodes are closed - unpleasant surprises are excluded.
xxx: Can you think that this phrase could help uncover the secret of why in Soviet times the sausage was more delicious?
__________
They just hint that now the real meat in the sausage will not be able to get even by chance.