Latest / The Manufacturing Podcast with Fexingo: Factories, Supply Chains, and Industrial Business / How a Brazilian Factory Turns Pineapple Leaves into Leather
Transcript
- Lucas: So there's a factory in the state of Paraíba in northeast Brazil that's taking the leaves from pineapple plants — which are usually burned or left to rot — and turning them into a material that looks and feels like leather. Lucas: It's called Piñatex. You might have heard the name, but the manufacturing process is actually pretty fascinating. The company behind it is called Ananas Anam, and they started with a small operation in the Philippines, then moved to Brazil to be closer to the pineapple supply. Luna: Right, because Brazil is one of the world's largest pineapple producers. So they're essentially using a waste stream that's abundant and currently has very low value. Lucas: Exactly. Pineapple plants produce one fruit per plant, and after harvest, the leaves are typically left in the field to decompose or are burned. Ananas Anam saw an opportunity to extract the long fibers from those leaves. Lucas: The first step is mechanical. The leaves are fed into a decorticator, which strips away the outer layer and separates the fibers. That machine is not unlike the ones used for abaca or hemp. Then the fibers are washed and dried naturally. Luna: But how do they turn those stiff plant fibers into something that feels like leather? Because it's not woven, right? Lucas: No, it's a non-woven textile. After drying, the fibers are mixed with a bio-based binder — originally they used petroleum-based binders, but now it's a combination of corn-based polylactic acid and other plant-derived polymers. That mixture is then compressed into sheets under heat and pressure. Lucas: The result is a material that has a soft, flexible hand feel, with a slight grain texture. Then they apply a finish — often a water-based polyurethane coating — to improve durability and water resistance. Luna: So it's not fully natural, but it's significantly better than petroleum-based synthetic leathers like polyurethane or PVC. What's the environmental footprint compared to cow leather? Lucas: That's where it gets interesting. According to a lifecycle assessment Ananas Anam commissioned, Piñatex uses about eighty percent less water than cow leather and avoids the methane emissions from cattle. Plus, it doesn't involve the toxic chrome tanning that conventional leather requires. Lucas: However, you do have the polymer binder and coating, which are not biodegradable in the strict sense, though the company says they're working on a fully compostable version. As of 2026, they've introduced a new binder with a higher percentage of bio-based content. Luna: And who's actually buying this material? I've seen Piñatex in some shoes and bags, but is it mainstream yet? Lucas: It's still a niche, but growing fast. Major brands like Hugo Boss, H&M, and even Mercedes-Benz have used Piñatex for car interior prototypes. In 2025, the factory produced about five hundred thousand square meters — enough for maybe two hundred thousand handbags. They're currently scaling up to reach two million square meters by 2027. Lucas: One challenge is cost. Piñatex is priced at roughly thirty to forty dollars per square meter, which is comparable to mid-range synthetic leather but higher than mass-produced PU. Fashion brands use it for premium sustainable lines. Luna: And what about durability? If I buy a pair of shoes made from Piñatex, will they last as long as leather? Lucas: In tests, it holds up well to abrasion and flexing — similar to standard synthetic leathers. But it's not as strong as thick cowhide. For shoe uppers, it works fine. For high-wear items like work boots, they'd need a heavier grade. The company is developing a tougher version for automotive and footwear applications. Lucas: One thing that's impressive is that the entire production process — from decortication to finishing — happens in one factory complex in Paraíba. They employ about two hundred workers, many from local farming families. Luna: So it's creating a new income stream for pineapple farmers. That's a nice circular economy story. Lucas: Absolutely. And it's not just pineapples. They're experimenting with other agricultural waste: banana stems, hemp, even palm leaves. The core technology — extracting natural fibers and bonding them into sheets — can be adapted to many crops. Luna: That's really fascinating. So where do you see this technology heading in the next few years? Lucas: I think we're going to see more of these 'waste to value' factories popping up around the world. The key is the supply chain: you need to be close to the agricultural source because the raw leaves are heavy and expensive to transport. That's why Brazil makes sense for pineapple, but for other fibers, you might see factories in Southeast Asia or Africa. Lucas: If today was actually useful to you, the way these stay ad-free is listener support — buy me a coffee dot com slash fexingo. Luna: Yeah, it's a small way to keep conversations like this coming. And we really appreciate it. Lucas: Right. Now, back to the future of Piñatex: the company recently partnered with a university in Germany to improve the binder formulation, aiming for a fully biobased and biodegradable version by 2028. That would be a game-changer. Luna: So eventually you could compost your old shoes? Lucas: Potentially, yes. But the challenge is that composting infrastructure isn't widespread. Still, the direction is clear: making materials that don't create waste at end of life. Lucas: It's one more example of how waste from one industry becomes a resource for another. And that's the kind of thinking we need more of.