Freight Shipment of California Strawberries in Mechanically Refrigerated Rail Cars

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Excerpt from Freight Shipment of California Strawberries in Mechanically Refrigerated Rail Cars: Test Shipments, 1967All berries were precooled before loading into the cars. Most lots were held overnight in the precooling room. The average temperature of the fruit at loading was 39° F.Air temperatures in the car and berry temperatures in the center of the pallets were measured with Ryan recording thermometers.Thermostats on the rail cars were set at 36° F. (2 tests), or 34° (3 tests).All cars had a modified atmosphere for lettuce of 2-percent oxygen 2-percent carbon monoxide (co), and 96-percent nitrogen (n2) introduced before shipment.Some individual pallets were enclosed in a sealed 5-mil polyethylene bag to increase coz concentration around the berries. The 002 increase was provided by either purging with a gas mixture that produced an initial lo-percent 002 and 5-percent 02 level, or by placing a l-pound block of dry ice inside the enclosed pallet. The dry ice was wrapped in paper and placed in an empty berry flat. Another empty flat was placed below the ice to prevent freezing of ad jacent fruit.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.