From Yahoo! News:
Starbucks employees warned customers about their beverages after testing out the allegedly toxic blending powders. A verified account on X reshared the video and shared their insights about what could be in this powder, sparking alarm on the internet.
@estarbucks6767 shared a behind-the-scenes of using the blending powder in one of their drinks. She and her colleague ‘Lorie’ tested it because of its alleged toxicity. With ominous music in the background, the two began their experiment. The TikToker began by adding five scoops of the powder to a large blender and placed it on the machine to blend. During this process, the individual recording the test commented, “Bro, you’re gonna get cancer…”