storing oil

Hello! I’m looking to master batch my oils. This past weekend, I tried for 2 batches. I resized my recipe in Soapmaker 3 for the amount I wanted. Then I melted my hard oils and butters then added my liquid oils. I went to do some errands. When I came back to it, I split the oils in half. I was...

I am just into soap making since January. A package arrived by mail today (hurray!) with 'special' oils that I cannot get locally. I understand that the shelf life of most oils is a year or two at most. Is there a way to store oils to prolong life? I now have palm, sweet almond, grape seed, rice...