Quantum Storage · Jewelry Cases & Organizers
QUANTUM STORAGE SYSTEMS QUS220 Series Small Ultra Stack and Hang Storage Bin
Lower concern. Bare plastic bins rarely contain PFAS, but brand discloses nothing.
Quantum Storage QUS220 is a standard polypropylene storage bin with no disclosed treatments. No known PFAS risk, though manufacturer provides no public PFAS statement.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Polypropylene plastic storage bin
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
The QUS220 is injection-molded polypropylene (PP), a thermoplastic chosen for rigidity, stackability, and chemical resistance. Polypropylene is one of the more stable food-contact plastics and does not leach BPA or phthalates by design. However, PP has a relatively low melting point (around 130-140°C / 260-285°F), meaning exposure to direct heat, hot liquids, or sustained sun exposure can cause warping, stress-cracking, or migration of additives.
The brand's record and disclosure
Quantum Storage Systems maintains minimal public disclosure about material sourcing, additives, or third-party testing. The company is not known to pursue certifications such as NSF or FDA compliance statements. No major recalls or safety controversies specific to this product line have been publicly documented, but the silent stance on PFAS, flame retardants, and colorant sourcing leaves questions unanswered for consumers seeking full transparency.
How it compares in its category
Storage bins in this segment (polypropylene stackable crates) are broadly similar in hazard profile. Quantum's QUS220 series occupies the mid-market tier and carries no documented safety disadvantage versus competitors like Rubbermaid or Akro-Mils, though those brands also rarely disclose additive details. Glass or stainless-steel alternatives eliminate plastic leaching risk but cost more and sacrifice stackability; natural wood bins present formaldehyde risk if glued or stained.
If you buy it
Store only dry goods, room-temperature items, and non-oily foods; do not place hot containers or steam inside. Keep bins out of direct sunlight and away from heat sources (radiators, ovens) to prevent warping and additive migration. Inspect regularly for cracks, stress marks, or discoloration; replace if structural integrity is compromised. Wash with mild soap and cool water; avoid scouring pads or abrasive cleaners that may degrade the plastic surface.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Polypropylene thermal degradation
PP bins will warp, crack, or release volatile organic compounds if exposed to temperatures above 130°C or prolonged heat. This product is unsuitable for hot-food storage or proximity to heat sources.
Additive migration (non-PFAS)
Injection-molded PP may contain colorants, UV stabilizers, or processing aids not fully documented by the manufacturer. While polypropylene itself does not leach BPA, the identity and purity of pigments and slip agents used in this bin are unknown.
Microplastics from wear
Repeated stacking, abrasion, or UV exposure can cause surface degradation and shedding of microplastics. Risk is low during normal dry-goods storage but increases if bins are exposed to sunlight or mechanical stress over years.
Heavy metals in colorants
No specific testing or recall data exists for cadmium or lead in QUS220 pigments. Standard food-contact regulations in North America restrict these metals, but Quantum does not publicly confirm compliance testing.
Bacterial contamination from crevices
Stacking and hanging design is seamless, reducing harboring sites. Normal cleaning and dry storage present minimal bacterial risk; concern applies only if bins are repeatedly exposed to moisture and not dried.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More jewelry cases & organizers grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.