A manipulating apparatus (10) receives a plurality of previously frozen pieces of pH modified foodstuffs or workpieces (23) and physically manipulates or stresses the workpieces while they remain in a frozen state. The physical manipulation causes relative movement between various points within the volume...http://www.google.ca/patents/US6389838?utm_source=gb-gplus-sharePatent US6389838 - Apparatus for reducing microbe content in foodstuffs by pH and physical manipulation
