Coffee Cups, ranked by PFAS safety
15 products graded from Bad to Excellent, safest first. 2 grade Good or better and are worth buying.
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The best non-toxic coffee cups, ranked safest first
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Solo
Solo Bistro Hot/Cold Foam Cups with Lids
Medium-high risk. Skip; foam cups commonly use PFAS water barriers.
Eco-Products
Eco-Products World Art Hot Cups 4oz
Lower PFAS concern. Brand explicitly avoids PFAS in compostable cups.
Worth buying Good or Excellent, safest first
Eco-Products
World Art Hot Cups 4oz
Plant-based compostable PLA coating
PLA monomer leaching (lactic acid/oligomers)
Limited concern
Compostability claims vs. actual infrastructure
Moderate concern
Coating degradation and exposure over time
Limited concern
Mold or bacterial growth in wet storage
Limited concern
Lower PFAS concern. Brand explicitly avoids PFAS in compostable cups.
⚠Waterproof or stain-proof treatment
Solo
Cup Company Grips Plastic Cups SQ1830
polystyrene plastic (PS) with grip coating
Polystyrene monomer and oligomer leaching
Limited concern
Undisclosed grip-coating additives
Limited concern
Microplastics
Limited concern
Off-gassing and volatile organic compounds
Limited concern
Low-medium risk. PFAS less likely, but Solo doesn't disclose coating details.
⚠Risky category by default
Graded and flagged Poor and Bad, we’d swap these
Eco-Products
World Art Renewable Resource Hot Drink Cups
Paperboard with unknown water/grease-resistant coating
Undisclosed water-resistant coating leaching
Limited concern
Coating degradation under thermal stress
Limited concern
Microplastic/fiber shedding from damaged coating
Limited concern
Inadequate compostability if coating is synthetic
Limited concern
Medium-high risk. Skip until coating chemistry is disclosed.
⚠Waterproof or stain-proof treatment
Eco-Products
GreenStripe Renewable Compostable Hot Cups
Plant-based fiber (sugarcane bagasse) with proprietary water/grease-resistant coating
PFAS
High concern
Coating degradation and leaching under heat and acid
Limited concern
Microplastic or polymer shedding from coating wear
Limited concern
Medium-high risk. Skip until coating composition is disclosed publicly.
⚠Waterproof or stain-proof treatment
Dixie
To Go Paper Cups & Lids
paperboard with grease-resistant/water-resistant coating (unspecified)
PFAS
High concern
Coating leaching from wear or degradation
Limited concern
Medium-high risk. Skip unless Dixie confirms PFAS-free coating chemistry.
⚠Waterproof or stain-proof treatment
Dixie
To Go 12 oz. Paper Cup with Leak-Resistant Lid
Paper cup with water/grease-resistant coating (unspecified chemistry)
PFAS
High concern
Thermal degradation of coating
Limited concern
Microplastic or coating fragments
Limited concern
Medium-high risk. Skip if you want PFAS-free; assume fluorinated barrier.
⚠Waterproof or stain-proof treatment
Dixie
Hot Paper Cups PerfecTouch
Paper with grease-resistant coating (unspecified)
PFAS
High concern
Coating degradation and microparticle release
Limited concern
Medium-high risk. Skip or contact Dixie; grease-resistant paper cups commonly contain PFAS.
⚠Waterproof or stain-proof treatment
Starbucks
Pike Place K-Cup
K-Cup plastic pod with paper/cellulose filter and unknown coating/lining
Unknown plastic/coating lining leachables
Limited concern
Microplastics
Limited concern
BPA & bisphenols
Limited concern
Inadequate pod recycling/cross-contamination
Moderate concern
Medium-high risk. Skip or brew loose instead; pod lining composition undisclosed.
⚠Waterproof or stain-proof treatment
Starbucks
Paper Cups - 46 Ct/ Sealed Sleeve. White Disposable Coffee
paper with proprietary water/grease-resistant coating (unspecified)
PFAS
High concern
Coating degradation and leaching under heat
Limited concern
Microplastics
Limited concern
Medium-high risk. Skip if concerned about PFAS; Starbucks offers no coating transparency.
⚠Waterproof or stain-proof treatment
Starbucks
Compostable Hot/Cold Cups
Plant-based fiber coating (PLA-lined) with unspecified waterproofing layer
Undisclosed waterproofing layer (likely fluorinated compounds)
High concern
PLA (polylactic acid) degradation under heat stress
Limited concern
Coating leachates into beverages (unspecified)
Limited concern
Microplastics
Limited concern
Medium-high risk. Skip until Starbucks reveals waterproofing chemistry.
⚠Waterproof or stain-proof treatment
Solo
To Go Strawless Cups with Lids
Polystyrene (PS) cup with proprietary water/grease-resistant coating on interior surface
Styrene monomer leaching
Limited concern
Coating degradation and particle release
Limited concern
Microplastic generation
Limited concern
Medium-high risk. Skip; Solo doesn't disclose coating chemistry, typical of PFAS use.
⚠Waterproof or stain-proof treatment
Solo
Bistro Design Hot Drink Cups Paper
paperboard with unspecified water/grease-resistant coating
PFAS
Moderate concern
Polymer coating migration or degradation
Limited concern
Recycled fiber contaminants (if applicable)
Limited concern
Ink or dyes in external print
Limited concern
Medium-high risk. Skip until Solo discloses coating chemistry.
⚠Waterproof or stain-proof treatment
Solo
Dart Container Corporation Solo Cup Polycoated Hot Paper Cups
paper with polycoated (plastic/wax) water barrier
PFAS
High concern
Plastic/polymer coating degradation over time
Limited concern
Formaldehyde / VOCs
Limited concern
Microplastics
Limited concern
Medium-high risk. Skip; polycoated cups likely use PFAS-based grease treatment.
⚠Waterproof or stain-proof treatment
Solo
Hot Paper Cups
Paper with grease-resistant/waterproof coating (unspecified)
PFAS
Limited concern
Thermal degradation of coating
Limited concern
Medium-high risk. Skip if PFAS concerns matter; coating transparency low.
⚠Waterproof or stain-proof treatment
Solo
Bistro Hot/Cold Foam Cups with Lids
Expanded polystyrene foam with unspecified water/grease-resistant coating
PFAS
High concern
Polystyrene degradation and microplastic shedding
Moderate concern
Styrene monomer leaching
Limited concern
Medium-high risk. Skip; foam cups commonly use PFAS water barriers.
⚠Waterproof or stain-proof treatment
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