Vortex Protein Shaker Bottle by Tilcore - Food-Grade, Leakproof Lid Shaker - Reusable Shaker Cups for Protein Shakes for Gym-goers & Travelers

I've been drinking (whey protien powder shakes) for years. Just recently my heart doctor told me that I should drink them. I have used a regular plain screw down solid flat top shaker bottle at first. Smooth round inside walls and flat screw down lid. Not the greatest thing to use for sure. You already know what that's like. I still have it somewhere, I think. Second I bought and now have (the blender bottle with wire disk ball). Yes, it works so much better. But it sometimes has chocolate powder stuck to the inside walls. Even if it's a small amount. The (blender bottle does mix good). Plus you have the (wire wisk ball to wash) as well as the shaker bottle. Then I have and use an ELECTRIC BLENDER, which is LOUD and POWERFUL. Nothing mixes more thorough than an (electric blender). Nothing mixes your protien powder shake THICKER than an (electric blender). SO NOW WHAT??? Even with the (electric blender) being SO FAST and SO POWERFUL, I STILL HAVE CHOCOLATE PROTIEN POWDER STUCK TO the INSIDE of the blender WALLS!!! HOW IS THIS POSSIBLE??? You see,..the BLENDER is SO FAST and SO POWERFUL when you push the button to start it, it SLINGS the (protien powder so fast and intensely) in a swirling VORTEX some of it STICKS AGAINST the inside blender WALLS!!! THIS ALWAYS HAPPENS. ALWAYS. So after blending/mixing it with the blender I have to take a spoon, or stick, or butter knife and knock / scrape it off the inside walls. Now THIS IS a REAL PAIN. I HATE THIS!!! So now I have the (TILCORE VORTEX bottle). I have never seen this before. Neither have I ever tried it before. I think I love this mixer bottle. It mixes very well. No clumps. No sticking to the inside walls. I think it has become my favorite now. I'm happy with it. Capacity is 24 ounces. It works best with 12 ounces of liquid. Shake it UP and DOWN. Inside walls are SLICK. NOTHING STICKS!!! I LOVE IT.