make the spoon, chopstick out of the pet-g NOT the pla.
pet-g is food contact safe. this means it does NOT leach cehmicals into food.
Pla is NOT food contact safe. generally nobody knows the exact mix of chermicals in any given brand of pla - so it can't certified food contact safe.

Let' put it this way how many people own wooded kitchen utensils.
3d printed has less crevices than old wooden utensils.

But on the chemical side - pet-g for food items, not pla.

There is a spanish company who have made a food safe material. It can be autoclaved for sterility.
If the new filaments are anything like their nylon - they'll be pretty amazing. I have samples to test :-)
http://www.mymatsolutions.com/products/