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What actually happens to your food waste in Cape Town

Every Thursday, food scraps from across Cape Town take one of two paths. One ends as methane in a landfill. The other becomes soil. Understand which matters more, and why the choice won't be optional for much longer.

19 May 2026

Every Thursday, Alfred pulls up in his bakkie outside homes across Cape Town—Gardens, Constantia, Fish Hoek, Sea Point, and over 30 other neighbourhoods. He collects buckets of kitchen scraps from over 120 households. But what happens to the scraps that don't get collected? And where does the food that Alfred takes actually end up?

Food waste follows two paths out of your kitchen. One goes into the municipal bin. The other goes into a Gooi bucket. The outcomes couldn't be more different.

The landfill path.

When your food scraps land in a municipal bin, they head to the Coastal Park Landfill in Muizenberg. It's a controlled site—fenced, permitted, engineered to contain waste. But "controlled" doesn't mean what most people think it means.

Once buried under layers of other rubbish, your banana peel enters an oxygen-free environment. Microbes begin breaking it down, but without oxygen, they produce something different than they would in your garden. They produce methane.

Methane is a greenhouse gas roughly 81 times more potent than carbon dioxide when measured over 20 years. To put that in perspective: your food scraps decomposing in a landfill create warming impact equivalent to driving a petrol car for miles. Multiply that by 2.9 million tonnes of organic waste buried in the Western Cape every year, and we have a climate problem.

Food waste also produces leachate—a toxic liquid that seeps through landfill layers and can contaminate groundwater. It's ammonia, nitrates, heavy metals, and decomposition byproducts all mixed together. In some parts of Cape Town, this is how the water underneath your neighbourhood is slowly poisoned.

The Western Cape produces 7.7 million tonnes of waste annually. Of that, 2.9 million is organic matter—food scraps, garden waste, agricultural residue. That's 37 per cent of everything we throw away, all being turned into methane and leachate in a hole in the ground.

Why this is a bigger problem than most people realise.

The Coastal Park Landfill is running out of space. It will reach full capacity by September 2026. That's in the next few months. When it's full, the City needs to find another site. Building landfills costs hundreds of millions of rands, faces community opposition, and just delays the same problem.

The bigger problem? The waste sector accounts for more than 30 per cent of South Africa's methane emissions. Most of it comes from decomposing organic matter in landfills. Food waste buried is not a small personal failing—it's part of a national (and, in many cases, global) emissions problem.

The provincial government has noticed. In 2027, the Western Cape will ban organic waste from landfills entirely. Private composting in the Western Cape jumped from 140,000 tonnes in 2024 to over 231,000 tonnes in 2025—a direct response to this ban. A new version of this system is coming.

The compost path.

When Alfred collects your scraps, they go to one of three facilities: Soil for Life in Constantia, Streetscapes on Rugley Road in Gardens, or Trafalgar Streetscapes in District Six. Collectively, they've processed 46,485 kilograms of Gooi's organic waste. That's what decomposing with oxygen looks like.

In a compost heap or properly managed facility, microbes break down organic matter aerobically—with oxygen. The byproduct is carbon dioxide and heat. More importantly, it's humus: stable carbon that gets locked into soil. The nitrogen, phosphorus, and potassium in your vegetable scraps don't disappear. They become available again for plants to use.

Compost isn't just neutralising a problem. It produces something valuable. Healthy soil holds water better, resists erosion, grows more nutrient-dense food, and sequesters carbon for decades. It's the opposite of a landfill.

Where Cape Town is heading.

The Coastal Park Landfill is also the site of a new two-megawatt gas-to-energy plant. Since November 2025, it's been extracting methane from decomposing waste, feeding it into engines, and generating enough electricity for 4,300 homes. The City has generated R36 million in carbon credits already.

It's a pragmatic project: take the methane that's already being produced and at least generate power from it. But it also signals something: even the City knows that burying organic waste is a problem worth investing millions to manage. The fact that we need this plant at all means we've already failed to prevent the issue at source.

The 2027 ban is the real shift. Not just in Cape Town, but province-wide. Businesses and larger generators are already submitting organic waste diversion plans. Households aren't legally required yet, but the infrastructure is being built for when they are.

Gooi sits inside this shift. It's part of a real change in how Cape Town manages its resources.

One banana peel in a bin becomes methane. The same banana peel in a bucket becomes soil.

The choice matters. And soon it won't be optional.

Ready to join the food waste revolution?