Susan on her blog can explain emulsification better then I can.
http://swiftcraftymonkey.blogspot.com/2 ... -then.htmlSpoon or a whisk will not give you the high shear like a stick blender can, which is needed to safely make lotion.
Emulsifying wax makes the oils and water "like" each other, so they won't separate, but you still need a high shear stick blender, so you get complete emulsification.
If you are making small batches and the stick blender's bottom is not completely immersed, you will get a lot of air bubbles.
I make fairly large batches, like a gallon at a time. I heat and hold the oil phase and the water phase for 20 minutes on low. I combine the two at just about 120 and stick blend til it starts cooling off a couple of degrees. Then I add my preservative and thoroughly stick blend. Then I pour into bottles. I don't put caps on the bottles til the lotion is completely cool. You need to do that since condensation can form on the caps. The condensation has no preservative and will make the lotion go moldy or spoil.
I would find a container that is just slightly bigger then you stick blender and high enough, so your lotion won't spill while the stick blender is on.
Susan also has a wonderful Lotionmaking 101 e-book that's available on her web site. I suggest you get it. It will answer most of your questions.
http://swiftcraftymonkey.blogspot.com/2 ... -done.html