Moving boiled pasta from one dish to another of sauteed vegetables I find streaks of rainbow at the bottom of the pot from the oil drops added to pasta while boiling so the pasta wont stick Like most things in Costco that come in bulk and languish in pantry, Annies Homegrown totally natural shells was the latest candidate given the 'must go' card. They were all emptied into a ziploc bag so they could be bulk cooked. I sauteed a bag of stir fry frozen vegetables and boiled shell pasta on the side. After mixing the pasta I felt that the pepper didnt do its magic and that the pasta could use a can of tomato sauce. While eating the pasta, I admired how the tiny shells had the tomato sauce filled in them. And then there were some shells that closed exactly like hemispheres in a globe. There were some that looked liked vanes of a turbine. How to remove a rainbow stain