Microplastics in Baby Food Pouches: Up to 11,000 Particles Per Pouch

The 2025 Greenpeace / SINTEF study

Commissioned by Greenpeace International and conducted by SINTEF Ocean (Norway) in 2025, this independent lab study tested two of the best-selling baby food brands in the US:

• Nestlé Gerber yoghurt-based purée pouches
• Danone Happy Baby Organics fruit-based purée pouches

The findings, published May 22, 2026 via Greenpeace International press release:

• 5,000 to 11,000 microplastic particles per pouch (varied by product).
• Up to 54 particles per gram of food in Gerber.
• Up to 99 particles per gram in Happy Baby Organics.
• 28 to 55 plastic-associated chemicals in the food.
• Polyethylene was the dominant polymer, matching the pouch liner material.

Why pouches are uniquely contaminating

1. Multi-layer flexible plastic. Most pouches are PE + aluminium foil + PET laminate. The food-contact layer is polyethylene, sometimes LDPE for soft pouches.
2. Acidic content. Most baby food (fruit purées, tomato sauce, yoghurt) is acidic, accelerating leaching from polyethylene.
3. Long shelf life. Pouches typically sit on shelves and in pantries for 6–18 months before consumption.
4. Heat exposure. Warming pouches (running under hot tap water or (worse) microwaving) accelerates particle release.
5. Squeezing during use. Babies and parents squeeze the pouch, abrading the inner liner with each use.
6. Plastic spout. Adds an additional polypropylene contact point that the baby's mouth touches directly.

Baby food packaging compared

Recommended glass-jar baby food brands

• Beech-Nut Naturals Glass, single-ingredient and blended fruit/veg in glass jars.
• Once Upon a Farm, refrigerated organic baby food, some lines in glass.
• Serenity Kids, savory baby food blends, some glass jar varieties.
• Square Baby, meal-delivery service in glass; subscription model.
• European brands (HiPP Glass, Holle Glass). European baby food brands have stronger regulations and broader glass availability.
• Homemade in mason jars or small Weck jars, single steamed/blended fruit or veg, stored in glass.

Practical transition plan for parents currently using pouches

1. Stop microwaving pouches immediately, heat dramatically accelerates leaching. Squeeze contents into a glass bowl to warm.
2. Switch to glass-jar baby food for at-home feeding.
3. Use refillable silicone pouches (Squooshi, Yumbox Aqua) when convenience matters, fill with homemade purée.
4. Make 1 week of purées on Sunday and freeze in glass containers. Thaw overnight.
5. For travel, use glass jars or refillable silicone pouches, not disposable plastic pouches.
6. Skip the on-pouch spout if you do use pouches, squeeze into a glass bowl with a spoon instead of direct mouth contact.

See related: microplastics in baby products, microplastics in baby formula, best baby bottles, and microplastics and children by age group.