21400 - preserved/processed fat tissues (efsa foodex2) 21420 - ciccioli and similar (efsa foodex2) The group includes any type of unmeltable residue left after animal fat has been rendered to produce lardo or tallow. Ciccioli are made by compressing, drying, and aging the unmeltable fatty scraps. By similarity, pork cracklings or scratchings, such as crisp residue left when fat is rendered or fried/roasted pork skin, are included in this group.[https://en.wikipedia.org/wiki/Ciccioli] and [https://www.google.co.uk/search?tbm=isch&q=Ciccioli and gratons] grattons greaves pork cracklings pork scratchings requires discussion