Styrofoam recycling in Minnesota: the resident's guide

Why curbside MRFs reject Styrofoam

Four interacting problems:

1. 96 percent air. A truckload of EPS weighs almost nothing. The economics of shipping it to a recycler do not work without densification equipment that few MRFs have.
2. It breaks into shards. Compactor trucks and MRF conveyors fragment EPS into tiny white beads that stick electrostatically to paper, cardboard, and other recyclables. The contaminated paper bale then loses value at the buyer.
3. It is brittle and dirty. Foam picks up grease, sauce, and food residue in takeout containers. Even the recyclable block-foam grades must be visibly clean and dry.
4. Low resale value. Recycled polystyrene resin sells for a fraction of recycled PET or HDPE. The downstream market does not pay enough to fund routine collection.

The fix is specialty processing — densifier machines that compress the foam by roughly 90 percent so that shipping pencils out. Several Minnesota processors run densifiers, but they need clean, sorted intake.

Types of EPS and their disposal status

• White block packaging foam (TV boxes, appliances, electronics, mail-order shipping) — the most-accepted category. Clean, intact blocks are accepted by seasonal HHW events, Foam Cycle MN, Foam Recycle Twin Cities, and Ridwell's quarterly featured-category pickup.
• Takeout containers (PS #6) — clamshells, coffee cups, plates, bowls. Almost no Minnesota recycling stream. Reduce the purchase, reuse where possible, and ultimately landfill.
• Packing peanuts — free take-back at every UPS Store, regardless of color or density. Some independent shipping stores also accept them.
• Insulation foam (rigid board) — exterior-wall or attic insulation, often pink, blue, or green polyisocyanurate or extruded polystyrene (XPS, not EPS). Construction-waste channel; sometimes accepted at HHW events when clean and unpainted.
• Pool noodles, foam swim toys — closed-cell polyethylene foam, not EPS. No recycling stream. Donate working condition; otherwise trash.
• Meat trays — often marked PS #6 but contaminated with food residue. Trash, not recycling.
• Coolers — bulky EPS. Donate if intact (Buy Nothing groups absorb them year-round); otherwise specialty drop-off if accepted, else trash.

Drop-off locations in Minnesota

• Hennepin County Brooklyn Park HHW facility — runs periodic seasonal collection events that accept clean block foam. Check the Hennepin County recycling calendar each spring and fall for dates.
• Foam Cycle MN — Minnesota-based specialty processor with periodic drop-off opportunities. Check the MPCA recycling locator at pca.state.mn.us for current locations and hours.
• Foam Recycle Twin Cities — densifier-equipped processor accepting clean white block foam year-round at posted hours.
• Out-state Minnesota — rural counties typically do not have year-round EPS drop-off; check the county solid-waste page for the next seasonal HHW event, which usually accepts block foam alongside hazardous materials.

For the exact drop-off nearest your address, ClearPath maintains a verified facility list per ZIP — type "styrofoam" plus your ZIP at /check.

Packing peanuts: free take-back at the UPS Store

Every UPS Store accepts packing peanuts for reuse, free of charge. They sort them by color and density for resale to shippers and pass-along to customers. Bring them in a bag or box, not loose. Two other useful notes:

• Bubble wrap take-back — most UPS Store locations also accept clean bubble wrap, air pillows, and packing paper for reuse.
• Some independent shipping stores (Pak Mail, Postal Annex) operate the same policy. Check the storefront window for a "We Take Peanuts" sign or call ahead.
• Buy Nothing groups absorb peanuts almost instantly — post "free packing peanuts, porch pickup" and they will be gone in hours.

Preparation: how to prep block foam for drop-off

1. No food contamination. Coffee cups, takeout containers, meat trays, and food-stained foam are all refused. Only clean shipping or appliance foam qualifies.
2. No labels or tape on visible faces. Peel shipping labels off; remove packing tape. Small residue is fine; large strips are not.
3. No painted, dyed, or treated foam. Crafting foam, painted decorative foam, and chemically treated insulation are all out.
4. Break to fit your trunk. Block foam compresses by hand. Snap large blocks into smaller pieces; the processor's densifier will pulverize them regardless.
5. Keep similar types together. Do not mix block foam, peanuts, and takeout containers in the same bag. Sorted intake moves much faster at the drop-off.

The Ridwell option (Twin Cities)

Ridwell's Twin Cities subscription includes a quarterly Styrofoam pickup as one of its rotating "featured categories." If you generate Styrofoam occasionally — a new TV, a shipped appliance, holiday packaging — and the next HHW event is months away, Ridwell consolidates it without a trip across town. Roughly $14-18 per month, also covers textiles, batteries, plastic film, and light bulbs in the standard categories.

What to do with takeout PS #6 containers

The hardest category in this guide. Polystyrene #6 takeout containers — clamshells, coffee cups, plates, soup bowls — have almost no recycling stream in Minnesota. Even the specialty processors that take clean block foam do not accept food-contaminated takeout. Honest options:

• Reduce the purchase. Bring a reusable container. Many restaurants will fill it for takeout if asked. Some city ordinances now ban PS #6 takeout at the source.
• Ask the restaurant to switch. Many takeout restaurants will switch to fiber clamshells when customers ask. Cost is comparable; fiber composts.
• Reuse for storage. A clean clamshell holds a single round of seed starts, a small organizer for hardware, or a paint tray. Squeezes one more cycle of use before landfill.
• Ultimately, landfill. Once contaminated with food residue, a PS #6 container has no path other than trash. Reduce the upstream purchase rather than chasing a recycling channel that does not exist.

Frequently asked

Related guides and item pages

• Styrofoam recycling →
• Textile recycling →
• Clothes disposal →
• Household hazardous waste — the complete guide →
• Textile recycling in Minnesota →
• Check anything by ZIP →