Sprout Review, Is Sprout Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 7 graded products, Sprout averages Good (60/100). On disclosure, the brand says nothing publicly about PFAS. 5 of its products grade Good or better. Grades are model-based estimates, not lab results.
Worth buying from Sprout Good or better, safest first
Sprout
Compostable Takeout Container Pack Plant-Based & Sustainable
Plant-based fiber (unbleached/uncoated)
Mold or bacterial growth during storage
Porous plant fiber can harbor moisture and microbial growth if stored in humid conditions…
Ink or printing residues on exterior
If containers have printed branding or labeling, the inks may contain heavy metal…
Lower concern. Plant-based compostable containers rarely need PFAS.
⚠Risky category by default
Sprout
Prepara Sprout Snack Pod 3-1/4" diam. x 5-5/8" h
food-grade plastic container (likely polypropylene or polyethylene)
Microplastics
Over years of use, all rigid plastics can shed microparticles through scratching, UV…
Additives and colorants leaching
Opaque plastic requires pigments and UV stabilizers; these are generally well-bound in…
Food residue and bacterial colonization
Plastic surfaces can harbor bacteria in scratches and crevices if not washed thoroughly…
Lower concern; rigid food container without known PFAS triggers.
⚠Risky category by default
Sprout
3 Sprouts Bento Box
Polypropylene food container with silicone latch
Microplastic shedding under use stress
Repeated thermal cycling, dishwasher exposure, or mechanical stress can cause…
Monomer leaching when heated
Polypropylene monomers can leach into fatty or acidic foods when the container is heated…
Silicone latch degradation
Silicone latches can harden, crack, or become brittle over years of use, particularly…
Lower concern. No known PFAS risk in polypropylene bento box.
⚠Risky category by default
Sprout
Nourish Molded Fiber Takeout Containers, Compostable, 3 Compartments, 7.9 x 7.9 x 2.9, White, Sugarcane, 200/Carton
Molded fiber from sugarcane, compostable
Microplastics
Molded fiber can shed fine cellulose particles during handling or if the container…
Bacterial or mold growth in porous material
Sugarcane fiber is inherently porous and absorbs moisture. If containers are stored in…
Lower PFAS concern. Molded fiber from plant material rarely requires PFAS coatings.
⚠Risky category by default
Sprout
Coco Wooden Rectangular Takeout Bento Box
Wood (bamboo or similar) with food-grade lacquer/finish
Lacquer coating degradation and splinter exposure
If the food-grade lacquer is damaged or worn through repeated washing, splintering wood…
Mold or bacterial growth in wood
Wood retains moisture in cracks and seams if not dried thoroughly. Improper storage…
Migration of volatile organic compounds from lacquer
New wooden bento boxes may off-gas low levels of VOCs from the cured lacquer…
Lower concern; wood format avoids need for PFAS-based barriers.
⚠Risky category by default
Graded and flagged Poor and Bad, we’d swap these
Sprout
Eco Friendly Take Out Box
paperboard with unknown grease-resistant coating
PFAS
Paperboard food packaging typically uses fluorinated coatings for water and grease…
Coating degradation and microparticulate shedding
Repeated handling, moisture exposure, or heat can cause the coating to flake or degrade.…
Undisclosed additives in paperboard or coating
Paperboard and coatings may contain bleaching residues, optical brighteners, or…
Migration of coating into fatty or acidic foods
Grease-resistant coatings are designed to resist fats, but prolonged contact or heat can…
Avoid without explicit PFAS-free verification from the manufacturer.
⚠Waterproof or stain-proof treatment
Sprout
#3 Bamboo Compostable Takeout Containers w. Window and Sticker Seal (200 / case)
Bamboo fiber with polymer window and grease-resistant coating
PFAS
No public coating composition disclosed by Sprout; grease-resistant food contact surfaces…
Polymer window leaching (PLA or PS)
The window material is not specified in available product descriptions. PLA can leach…
Coating degradation and microparticle shedding
Bamboo fiber containers with applied coatings are prone to wear at fold lines and edges…
Mold or bacterial growth from moisture retention
Compostable fiber products absorb moisture; if stored in humid conditions or reused…
Avoid without documented PFAS-free status of the coating.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →