Evening Republican, Volume 21, Number 61, Rensselaer, Jasper County, 14 March 1917 — FOOD IS PRESERVED IN GAS [ARTICLE]

FOOD IS PRESERVED IN GAS

French Employ Patented Process In Storing Up Supplies. A method has been invented for preserving various food or other products, and especially milk powder, the idea being based upon placing the substance in a sealed vessel or packing case with inert gas, so that this latter prevents the usual spoiling of contents by the action of the air. tn the French patented process the milk powder is packed in metal boxes of convenient size, which are entirely «a<ied exoept to- a plnhate that is toft at the top. A number of such boxees ar© (ts In a Chamber andtheairis sThanstad by means of an air pump. The valves are then opened which allow nitrogen to enter the chamber and fill up the several boxes = When ODening up the chamber the boxes ar/Zckly removed and the pinhole soldered before an appreciable amount of air has time to enter.