Mies dumplings is the right term!

Of the 300 ordered balls we have thrown away 294! The balls were too has and has not been accepted! After we made our knowledgeable with an ornithologist, we now know to check the quality of the dumplings. You push the balls with 'woman hand', while they must yield slightly dented and without crumbling. If this consistency is present, the fat content is high, and then many more cores can be seen should agree the quality.
Some manufacturers add some cheap products for cost reasons largely odorless paraffin wax in the mixture, which does not notice the customer immediately, but the product is just hard ...