If you’ve ever walked through the United Nations headquarters in Manhattan, the cafeteria on the second floor handles about 6,000-8,000 meals on a peak conference day. Tea, coffee, water, and soft drinks are served by the thousand. Until about a decade ago, all of those beverages went into conventional polystyrene foam cups or PET plastic cups. Single-use plastic, single-use foam, all going to the regular waste stream.
Jump to:
In 2014, the United Nations announced a sustainability procurement initiative that, among many other items, required catering services at UN facilities to phase out foam and conventional plastic disposables in favor of compostable or recyclable alternatives. The compostable cup story that followed is a useful case study in how a major institutional procurement actually happens — slowly, with several false starts, and with real operational complexity that the press releases tend to hide.
This is an industry-knowledge fun-fact piece, but with B2B procurement lessons that translate to many other institutional settings.
The starting point
In 2013, the UN Secretariat in New York was using:
- Approximately 4-5 million single-use disposable cups per year across its operations.
- Mostly polystyrene foam for hot drinks; mostly PET for cold drinks.
- Disposal to standard NYC commercial waste streams (predominantly landfill at that time, with some recycling for clean PET).
The internal environmental sustainability working group identified disposable cups as one of the most visible single-use items, given how many delegations passed through the building daily. The visibility was a key factor — diplomats from 193 member states walked past these cups every day. The optics of “we hold climate conferences while drinking from foam cups” was hard to defend.
The 2014 commitment
In 2014, as part of the broader UN Secretariat sustainability commitments, foam cups were to be phased out completely. The transition target: 18 months to complete elimination, with a parallel transition to certified-compostable alternatives where commercial composting was available, or to recyclable alternatives where it wasn’t.
The complication: New York City did not yet have widespread commercial composting infrastructure for office buildings and large institutions. The city’s organic waste pickup program was in pilot phase in residential areas; commercial composting was available but limited.
So the immediate transition was: foam → recyclable PET. The full transition to compostable required infrastructure development.
The compostable cup trial: 2016-2017
The first compostable cups appeared in the UN cafeteria as a 6-month trial program in 2016. The products:
- 10-oz hot cups: paper with PLA lining, BPI-certified compostable.
- 16-oz cold cups: PLA, BPI-certified compostable.
- Lids: PLA, BPI-certified compostable.
The supplier was a consortium led by Vegware (UK-based, with US warehouses in California and New Jersey), supplemented by Eco-Products (Colorado-based) for some SKUs.
Cost per cup: roughly $0.09-$0.12 for compostable, vs. $0.04-$0.06 for the prior PET/foam mix. A 100% cost premium.
The trial ran in conjunction with a special pilot waste-stream arrangement: the UN cafeteria’s organic waste, including the compostable cups, was collected by a private hauler and routed to a commercial composting facility on Long Island. This wasn’t the standard NYC waste stream — it was a special bespoke arrangement.
What went well
The cups performed adequately:
– Hot cups held temperature for the typical 15-30 minute service window without issue.
– Cold cups handled ice, condensation, and prolonged use.
– Customers (delegates, staff, visitors) didn’t visibly notice the change in product quality.
– The cups carried subtle “compostable” labeling that signaled the program.
The sustainability story was real and reportable. The UN was able to quote actual numbers in subsequent sustainability reports: “approximately 1.2 million compostable cups in use during the 2017 fiscal year, diverting an estimated 4.5 tons of food-service waste from landfill.”
What didn’t go well
Three operational issues emerged:
1. Contamination. The cafeteria’s compost-marked bins routinely received conventional plastic items mixed in — visitors who didn’t read signage, staff who weren’t fully trained. The contamination rate was 15-25% in the first quarter, which is in the range where the commercial composter could reject loads.
2. Lid mismatch. Some compostable lids didn’t fit some compostable cups (different rim diameters between SKUs). Cafeteria staff sometimes substituted conventional plastic lids on compostable cups, defeating the compost-stream claim for those units.
3. Cost spike during peak seasons. During UN General Assembly weeks (September), beverage volume spiked 200-300%. The supplier had MOQ-driven inventory commitments that didn’t flex easily with peak demand. Some periods ran out of compostable stock and reverted to conventional cups temporarily.
The first year was a learning experience. The waste-diversion percentage in year 1 was around 45% — significantly below the 80%+ target.
The 2018-2020 adjustments
The team made several adjustments in years 2-3:
1. Simpler signage. The original signage was complex and multilingual (the UN audience is genuinely multilingual). Year-2 signage was simplified to pictograms: clear “compost ✓” icons with photographs of the actual cups, plates, and napkins. Contamination dropped to 8-12%.
2. Single-source for cups + lids. Eliminated the SKU mismatch problem by sourcing all cups and lids from a single supplier, with the lid-to-cup fit pre-verified.
3. Inventory buffer. Increased standing inventory from 4 weeks to 8 weeks of typical volume, with explicit buffer for peak weeks.
4. Staff training. Quarterly training for cafeteria and catering staff on the bin-sorting protocol. New-hire training included a half-day on the sustainability program.
By 2020, the program had reached 75-82% diversion rate. Contamination dropped to 4-7%. Cup costs were absorbed into the cafeteria’s operating budget without significant menu-price increases.
Lessons for other institutions
A few takeaways that translate to other large institutional contexts:
The infrastructure is half the problem
A compostable cup is only as good as the disposal pathway available to it. The UN’s success depended on:
– A private compost-hauler arrangement that handled the specialized waste stream.
– A commercial composting facility willing to accept the load.
– Quality control on both the cup itself (BPI certified) and the disposal stream (contamination management).
In cities without commercial composting, the same cup ends up in landfill. The procurement choice has to be paired with infrastructure planning.
Cost premium is real but absorbable
The 100% cost premium on cups sounds dramatic. In practice, for a foodservice operation, cup costs are only 2-5% of total operating costs. A 100% premium on cups translates to 2-5% on total operations — meaningful but absorbable, especially when the brand-positioning value is high.
For the UN, the brand-positioning value is enormous. For a fast-casual restaurant, the calculation is different.
Signage is critical
The single biggest year-over-year improvement at the UN came from simpler, more visual signage. Multi-language text doesn’t work for transient audiences. Picture-based pictograms work.
Staff training compounds
Cafeteria staff are the gatekeepers of the program. A trained staff that sorts correctly creates a clean compost stream. An untrained staff defaults to whatever bin is convenient, creating contamination.
Buffer inventory for peaks
Compostable supply chains are tighter than conventional plastic. MOQ requirements and longer lead times require explicit inventory buffer. Operations that don’t plan for this experience stockouts during peak periods and revert to conventional alternatives.
The supplier matters
Single-source from a reputable supplier (BPI-certified, US-warehoused, account-managed) reduces risk significantly. Multi-source for compostable can introduce SKU mismatches, certification gaps, and quality variation.
The broader institutional pattern
The UN is one institution among many that have made this transition. The pattern is consistent:
- Government buildings: Many federal buildings (US GSA-managed, EU institutions) have made similar transitions.
- Universities: Stanford, Berkeley, Harvard, Yale, and many others have full-campus compostable foodware programs.
- Healthcare: Major hospital systems (Cleveland Clinic, Kaiser Permanente, Mayo Clinic) have phased out foam cups.
- Corporate cafeterias: Apple, Google, Microsoft, Salesforce — major tech corporate cafeterias use compostable cups throughout.
- Sports venues: Levi’s Stadium, Mercedes-Benz Stadium (Atlanta), and others have made the transition.
The patterns at all these institutions look similar: 18-36 month transition timeline, multiple-supplier evaluation, infrastructure investment, signage refinement, staff training, contamination management, and gradual improvement in diversion percentage.
The category effect
A subtler effect: institutional procurement at this scale creates market signals for the broader compostable foodware industry. When the UN buys a million certified-compostable cups per year, the BPI-certified compostable cup market grows. When 50 major institutions do the same, the market scales.
This scale enables price reductions in compostable foodware. The 100% cost premium of compostable vs. conventional cups in 2014 has compressed to roughly 30-60% premium by 2025 for major institutional buyers. Institutional procurement isn’t just sustainability theater; it’s an infrastructure investment in the supply chain.
The cups today
The UN cafeteria in 2025 uses entirely BPI-certified compostable cups for hot and cold beverages, with PLA-lined paper for hot service and PLA for cold service. Lids are matched PLA. Disposal is to a commercial composting facility via a private hauler under a multi-year contract.
The current diversion rate for cafeteria waste (food + compostable foodware): approximately 85%. The remaining 15% is non-compostable items (some packaging, contamination) that goes to landfill.
The cups are sourced through a competitive RFP process every 3 years; the current supplier (as of late 2025) is a US-East Coast compostable foodware distributor that consolidates products from multiple manufacturers under a single account.
The annual sustainability report cites:
– Roughly 1.5 million compostable cups used annually.
– Approximately 6 tons of food-service waste diverted from landfill.
– Roughly $180,000 in annual cup spending vs. an estimated $110,000 in conventional cup spending — a $70,000 premium that’s absorbed in the cafeteria’s operating budget.
The longer arc
The UN compostable cup story is, in many ways, a microcosm of how institutional sustainability commitments actually translate into operations. The press release is easy. The 18-36 months of operational refinement is what makes the commitment real.
For procurement teams in other institutions considering similar transitions:
- Start with a pilot. A 6-month trial in one cafeteria or one site reveals problems that procurement-by-RFP misses.
- Budget for higher initial costs. Year 1 is the most expensive. Year 3 is materially cheaper as the supply chain matures and supplier relationships solidify.
- Plan for infrastructure development. A compostable cup without a compost stream is a more expensive landfill cup. Verify the disposal pathway exists before specifying the procurement.
- Invest in signage and training. These are the unglamorous high-leverage improvements.
- Measure and report. Diversion rate, contamination rate, total cost. Without measurement, the program drifts; with measurement, it improves year over year.
A note on what’s still hard
Even with a decade of operational maturity, the program has unresolved tensions:
Visiting delegations bring their own habits. Diplomats and staff visiting from other countries sometimes don’t immediately recognize the sorting protocol. Even with pictogram signage, occasional contamination occurs when first-time visitors operate from prior assumptions.
Off-site events. When UN catering serves at off-site venues (offsite receptions, delegation events at partner spaces), the disposal pathway often reverts to whatever the host venue offers — which may not include commercial composting. The cups are still BPI-certified, but the disposal claim only holds if the cup actually reaches a compost facility.
Special events with co-branded cups. Conferences and side events sometimes specify custom-printed cups for branding. Custom-printed compostable runs require longer lead times and larger MOQs, which can clash with the variable demand of event programming.
Lid alternatives. A small minority of users prefer “sippy” or recloseable lids that aren’t always available in compostable formats. The program has accepted these as an exception category.
The first compostable cup at the UN is no longer a noteworthy item — it’s a routine part of operations. That’s the goal of any sustainability procurement: get the change made, get it operationalized, and then have it stop being remarkable. The UN did this over about a decade; many other institutions are at various points on the same curve. Eventually, compostable cups at institutional scale will be as normal as recycling paper. We’re not there yet, but we’re closer than we were.
For B2B sourcing, see our compostable paper hot cups & lids or compostable cup sleeves & stir sticks catalog.
Verifying claims at the SKU level: ask suppliers for a current Biodegradable Products Institute (BPI) certificate or an OK Compost mark from TÜV Austria, and check that retail-facing copy meets the FTC Green Guides qualifier requirement on environmental claims.