This might be an american thing but people refer to every plastic container as tupperware (and every facial tissue as kleenex). Tupperware doesn't test its products on animals.
I'm not even sure why Glad and Ziplock even enter the picture. There products are reusable/disposable. They are cheap (maybe a dollar each) but they don't last nearly as long as a normal plastic storage container (Tupperware, Rubbermaid et al).
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