Smoothie sachets can’t typically be made from recycled plastic because they need to meet strict food safety and barrier requirements that recycled materials often can’t guarantee. Packaging for foods must provide a highly reliable barrier against oxygen, moisture, and contamination to maintain shelf life and safety, and this is best achieved with virgin, multi-layer plastics. Recycled plastics can carry trace contaminants, have variable quality, and are harder to use in the complex laminate structures required for these sachets, which makes them unsuitable for direct food contact in this format under current regulations and manufacturing constraints.