this is not a good idea.
when you chew you produce saliva which begins the process of breaking down your food, the saliva also increase the stomach juices to aid the food break down.
I'm a little concerned that you wish to eat pureed food and this hints at a mental condition or an inability to deal with adulthood.
by all means chew your food well but you do not have to chew it to extreme degrees.
all this changes if you have a medical condition of the oesophagus of course.