As dedicated readers of this column may recall, micro-oxygen is shorthand for reducing the oxygen level in food and food environments to very low levels in order to prolong the biochemical, enzymatic, and microbiological life of the product. We have reserved the term nano oxygen to the next lower level, of diving into the deeper—nearerto-zero oxygen. As we asymptotically approach an ultimate of no molecular oxidation driver, we achieve the practical objective of more time during which the …