The Truth About ‘Not Enough Waste to Burn’
Foodthink’s Take
This article has been adapted from that podcast episode.

Guests on This Episode
Mao Da
PhD in Environmental History, Chairman of the Shenzhen Zero Waste Environmental Public Welfare Development Centre, and initiator of the “Non-toxic Pioneer” campaign. For two decades, he has been involved in solid waste and environmental health projects across multiple environmental organisations. His current work focuses on sound chemical management, greening e-commerce, plastic waste governance, and the practical promotion of zero-waste principles.
Sun Jinghua
Goes by the nature name “Lotus Pod”, Director of the Waste Reduction Project at Friends of Nature, and editor of the popular science book *The Magic Book of Trash*. Over the years, she has carried out in-depth education, advocacy, and public outreach in waste reduction, sorting, and campus zero-waste initiatives.
Yu Yang
Editor at Foodthink, recently examining the toxic relationship between plastics and humanity.
Episode Host
Chang Tianle
Founding editor of Foodthink and organiser of the Beijing Organic Farmers’ Market.
I. What Is Everyone So Excited About Regarding “Not Enough Waste to Burn”?
玉阳:I believe the creator goes by “科技大司马”. I actually clicked into his channel to take a look. He generally approaches technology through the pragmatic, industry-first lens typical of China’s online ‘industrialist’ subculture, but aside from this “not enough waste to burn” video and another on “AI lasers replacing pesticides”, his other content hasn’t gained much traction. The reason this particular video captured so much attention—making a public that’s long been frustrated with waste management suddenly praise incineration—might be that incineration represents a blunt, straightforward solution. It doesn’t matter what the material is; you just toss it all into the furnace and burn it. There’s a distinct sense of visceral satisfaction in that.

Soon after, I began receiving numerous private messages on WeChat: “Have you seen this video? Is it really true?” Quite a few of the senders had even attended our “Waste and Life” teacher training programme. I told them, “After I spent two or three days teaching you for free, how could you forget the fundamentals? Think back to our waste hierarchy principles: incineration ranks second from the bottom. It’s merely a slightly better option than landfill and littering.”
II. Is There Really Not Enough Waste to Burn?
Tian Le: If you just take a look at your own lifestyle or that of those around you—think of all those single-use bubble tea cups, and the various plastic packaging from food delivery and courier parcels—you can easily sense that the volume of waste we produce keeps climbing. So why has China built so many waste incineration plants?

3. Can incinerators control dioxin emissions?
Lian Peng: A friend asked whether current incineration methods can now reliably control dioxin emissions. I’ve heard they even maintain real-time monitoring. But if an incineration plant’s dioxin emissions are only tested at least once a year, can that really be called real-time monitoring?
Mao Da: In reality, to get a comprehensive and accurate picture of dioxin emissions from incineration, you need periodic or semi-continuous sampling and monitoring. Yet, statutory emission monitoring is mandated only once a year. Add in voluntary testing, and you might get a maximum of three or four times annually. In many areas, facilities are unwilling to conduct tests due to the costs, or once testing reveals problems, they simply stop doing it. However, scientific literature shows that dioxin accumulation in soil around certain incineration plants is rising compared to control sites, and dioxin concentrations in the air remain elevated in some regions.
Lian Peng: In 2020, Friends of Nature sued an incineration plant in Jiangsu called Daji for failing to meet pollution emission standards, and we won. If every incineration plant that fails to meet emission standards could be addressed through legal channels, the situation might improve. China’s incineration technology has indeed advanced in terms of safety compared to over a decade ago, but the core issue is that there are simply too many incineration plants now.

4. Why Incineration Is Not a Panacea?

Tianle: Besides, there are always types of waste that simply aren’t suited for incineration, such as glass or food waste.
Mao Da: Exactly. Incineration directly burns carbon-based materials, releasing them straight into the atmosphere as greenhouse gases. Given how frequently we’re experiencing extreme weather, food waste is arguably the very last thing that should be burned. Since our diet consists largely of carbohydrates, burning it simply converts it into greenhouse gases. Furthermore, plastics and wood are both rich in carbon, so burning them also emits greenhouse gases. If we were to skip all those sorting and recycling measures we just discussed, just buy carelessly, use heedlessly, and discard everything recklessly, sending it all to incineration plants or landfills, the consequences would be simply too severe for us to bear.

Tianle: That’s right. I’ve noticed that even the waste collectors in residential compounds won’t take glass bottles.
Maoda: Yet incineration plants cannot burn glass bottles either. Incineration is not a panacea; we must always assess whether a given material is actually suitable for burning. With something like glass, we need to consider how to enhance its reuse and extend its lifespan—namely, by returning it to the manufacturer for refilling. If you look at the exterior of a glass bottle for signs of wear, you can be certain it has been reused.
Tianle: Glass is widely regarded as a far superior food packaging material to plastic in terms of food safety, so it is a real pity that it suffers from such a major drawback.
Lianpeng: The truth is that because raw glass is so inexpensive, manufacturers would rather produce new bottles than recycle them, largely because the processing costs for recycling can be exceedingly high.
5. Health Risks of Plastic Food Packaging

Mao Da: PLA is a relatively biodegradable material, yet manufacturers still need to introduce additives to impart specific properties. These can include substances that resist degradation or carry risks of endocrine disruption and carcinogenicity.Additives leaching from food packaging can easily contaminate our meals. Researchers in North America have conducted studies along these lines: participants who ate takeaway from international fast-food chains packaged in single-use plastics for several consecutive weeks found their intake of plastic-derived additives significantly higher than on a standard diet.
Compared with microplastics, the scientific evidence regarding the health risks of chemical additives is far more concrete, as certain hazardous substances are deliberately introduced. Take phthalate plasticisers, for instance. Their most prominent effect is endocrine disruption, functioning similarly to synthetic oestrogens.When children are exposed to these plastic additives, it can trigger precocious puberty in girls and cause abnormal development of the reproductive organs in boys. A colleague of ours, a paediatrician at a maternal and infant hospital in Hangzhou, has noted that the rising incidence of hypospadias in young boys over recent years may well be linked to this. Then there is bisphenol A (BPA), widely recognised today as another endocrine disruptor that can impair female reproductive health.
Tian Le: I’d say breaking our reliance on plastic packaging is much like trying to quit smoking or drinking. We all understand the rationale, but bridging the gap between awareness and actual behavioural change is an enormously long haul. All the more so when the health impacts of these plastics are so insidious and gradual.
Mao Da: Precisely. Most parents today know to look for baby bottles that are BPA-free, yet there are other hazards we remain largely unaware of. Consider Type 3 PVC, frequently used for mooncake trays and egg cartons; it relies more heavily on chemical additives than almost any other plastic. Few realise that during the industrial production of pre-prepared meals, the plastic piping used in processing can also leach harmful substances.
For those keen on baking, a quick word of caution: inexpensive mooncake trays purchased online may very well be made from PVC. Similarly, household cling film is now a mix of PVC and non-PVC variants.Although national regulations prohibit the use of PVC in plastic packaging that comes into direct contact with meat, oil, or fats, how exactly is the average consumer expected to distinguish between them in everyday shopping? It is virtually impossible.
VI.The emerging plastic pollution from takeaway packaging
Then there’s the issue with disposable cutlery. Even when I explicitly request no cutlery on my orders, the restaurants still send them out anyway. It’s likely that during the lunch rush, restaurants are simply too swamped to check special instructions. Glancing at a note could cost precious seconds during packing, or they might fear a negative review for withholding cutlery, so they just standardise the process and include them as a matter of course.

Lianpeng: These days, food delivery typically uses composite bags. National regulations restrict businesses from providing non-degradable plastic bags, meaning the old-style carrier bags with handles are effectively banned; providing them now incurs fines. So what have businesses switched to? Non-woven fabric, or degradable alternatives. However, degradable bags tend to be soft and flimsy. They tear or sag easily, causing the food to spill.That is precisely where composite bags came onto the scene. They offer structure and look presentable, but from a waste management perspective, they fall far short of standard plastic bags. Waste collectors won’t even take them. Because composites combine plastic, non-woven fabric, and sometimes aluminium foil, it is extremely difficult to separate and repurpose the layers.By contrast, non-woven bags are made from a single, uniform material, which is relatively easier to process.
Tianle: So now, food delivery not only fuels an overflow of conventional plastics, but also generates a host of new, hard-to-manage packaging waste.
Maoda: Exactly. A “new pollutant” in another sense. Since they are so difficult to recycle, they can only be sent to incineration.
Lianpeng: I am part of the generation born in the 1970s and grew up in Beijing’s hutongs. Back then, taking out the rubbish was colloquially called “dumping soil,” which tells you what household waste was mostly made of: ash, dust, and furnace slag. When I was a child, things like glass bottles and toothpaste tubes were fully recyclable.Today, the types of waste have only grown more “diverse.” There is a proliferation of non-recyclable packaging, and even low-value recyclables are no longer collected by anyone.

VII. Moving Beyond Crude and Heavy-Handed Waste Incineration
Tianle: On that note, I find it profoundly unfair. Even a small-scale, non-profit operation like the Beijing Organic Farmers’ Market is willing to invest time and labour in plastic reduction and reuse, yet large corporations refuse to do the same.

Tianle: We never hand out new bags. Instead, we encourage customers to bring their own, which we collect and then make available to other shoppers free of charge. Additionally, some egg farmers at Beijing Organic use paper trays and rice husks for packaging, which are very easy to recycle. That said, a few farmers still use plastic foam liners for their eggs, packed inside cardboard boxes. Even so, as long as customers return the packaging to the stall, we collect it and send it back for the farmers to reuse. It really comes down to whether vendors are genuinely committed and willing to absorb the costs. Packing takes labour, and returning the materials incurs courier charges.

Tianle: By contrast, major chain supermarkets such as Hema and JD could easily designate a collection area to gather the surplus boxes generated during shopping. If kept clean, the supermarkets could return them to manufacturers for reuse, and processing them in bulk would yield economies of scale. Fresh produce e-grocers like Hema and Xiaoxiang largely operate their own delivery fleets. They could simply collect the bags at the same time they hand over the groceries. I recall SF Express operates a cold-chain service where couriers retrieve the insulated crates upon delivery; that is a sensible model.
Lianpeng: Indeed. One could even consider levying a one-yuan deposit per box. Customers could flatten them on the spot after purchasing, bring them back a few days later, or simply leave them with the delivery driver, with the deposit refunded in every scenario. Friends of Nature published an article on 30 March outlining several ‘innovative ideas’ to reduce packaging waste from fresh food platforms. For example, shoppers could book precise delivery windows to guarantee someone is home, enabling the driver to hand over the items directly without a bag.
Some counterintuitive practices at Hema also require rethinking: their rules state that for online purchases, even those collected in-store, items must be placed in bags, attracting a one-yuan packaging charge. While refunds can be applied for, many customers are unaware of the policy. Certain voucher schemes are also poorly designed; some are restricted to online use, effectively pushing consumers to place digital orders. Moreover, Hema relies heavily on containers. The brand name is only too fitting—it’s an overwhelming abundance of ‘boxes’. Shoppers cannot opt out of buying them, nor can they return them afterwards. Even if flattened and handed back on the spot, they end up in the bin.

8. Establishing a Personal Connection with Waste
Mao Da: Our zero-waste advocacy boils down to a nine-character mantra: buy better, buy less, use things longer. Of course, waste will always be generated, and much can be addressed through recycling. Leaders within organisations or companies can take the lead by piloting initiatives, creating small-scale systems that inspire others to follow. I know a waste management firm, for instance, that set up a small garden on their office rooftop to manage a closed-loop composting system. Groups like Friends of Nature and many peers in the field can offer technical support, so you don’t have to figure it out from scratch. We also warmly encourage you to support environmental NGOs—specifically Foodthink, Friends of Nature, and Shenzhen Zero Waste—by becoming monthly donors. Together, we can turn these ideas into reality.
Ultimately, we must forge a personal connection with waste. The most fundamental human instinct is simply not wanting rubbish piling up outside our own doors. Yet because waste is now swiftly cleared away, we tend to overlook the value of sanitation workers. We need to recognise that waste is not someone else’s problem—it is intimately tied to our own lives.
Yu Yang: I agree with Mao Da that we need to reconnect waste with daily life, though building that link is undeniably challenging. Take ordering takeaway, for example. We’ve spoken to people who don’t order in on a whim; it’s deeply woven into their work and lifestyle rhythms. Many work long hours past the official finish time, leave exhausted with no time to cook, and simply tap their phones to order while riding the metro. Unless that underlying pace of life shifts, meaningful behavioural change will remain elusive.
Another concept that comes to mind is reuse. Nowadays, it’s often viewed as a somewhat avant-garde lifestyle choice—think of turning old scraps of fabric into schoolbags, or the collage art popular in certain creative circles. Yet when I was a child, my grandmother patched my clothes in exactly that way. Within a traditional lifestyle, this kind of reuse isn’t a trend; it’s simply how life is lived. I believe that if we can genuinely integrate this ethos of circularity into everyday routines until it becomes second nature, meaningful behavioural shifts will follow much more naturally.

Prepared by: Li Ye
Edited by: Yu Yang
