We will use those new edge loops to make our shape rounder. Select loop by loop and tweak shape to match shape you like. After a little bit of tweaking with the handle I got the result as shown in the below image.

Now let us create the sugar jar. Let us once again start from CV curve. Always remeber, when you make any type of symmetrical object like bottle, vase, etc., you use this tool. Use cv tool and draw lines as shown in the below image. you need to have two separated lines, one for Sugar jar base mesh and one for closure object. Remember again to make sure that end points of curves need to be aligned with Y axis of grid for revolving purpose, as we did in our earlier steps.