We use these at work:
Will the MCT oil react with them ?
Also... I have this blender:
The container is made from Tritan:
Will the MCT react with it ?
MCT oils and Bulletproof coffee should be fine with these other products you are using. That being said, please refrain from microwaving.
I love this article for suggestions: https://www.bulletproof.com/diet/bulletproof-diet/best-bulletproof-coffee-blender/