Milled Biofuel Feedstock Blends (image) DOE/Lawrence Berkeley National Laboratory Caption JBEI and INL researchers densified the energy content of a mixed blend of biofuels feedstocks by milling the mixture into flour or pellets. Energy densification makes the feedstocks easier and less expensive to transport. Credit Photo courtesy of JBEI Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.