. American cookery . bors/ WHY RELIABLE RUBBERSSAVE LOSS IN CANNING. Old fashioned pre-serving known us thehoi pack method The Old Fashioned OpenKettle Method In the early days of canning in glass jars theold-fashioned open-kettle method was usedexclusively with the fruit packed thoroughlycooked and boiling hot into jars. The ringserved only as a cushion to prevent the passageof air between the top and shoulder of the was no strain on the rubber, no pressure.

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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidamericancookery19unse4