Latest / The Operations Podcast with Fexingo: Process, People, and Profit in Modern Business / How a Food Manufacturer Cut Plastic Waste by 60 Percent
Transcript
- Lucas: If you walk into almost any grocery store and look at a bag of pasta, you are looking at a packaging problem that most operations teams have just accepted as normal. Luna: Normal meaning... a plastic bag inside a cardboard box? Or the plastic bag by itself? Lucas: Both, honestly. But the part that hides the real operations cost is the plastic film itself. Most dry pasta comes in a multi-layer pouch — three, sometimes four different polymers laminated together. That structure gives you a great barrier against moisture and oxygen, but it is a nightmare for recycling and it costs more per square inch than a simpler film. Luna: And I assume that's the problem a company like this set out to solve. Lucas: Exactly. Today I want to talk about a mid-sized family-owned pasta company in the Midwest — we'll call them Prairie Pasta — that decided to cut their plastic packaging waste by 60 percent. They did it in 18 months, and they saved four hundred thousand dollars a year in the process. And they did not sacrifice shelf life or line speed. Luna: That is a big claim. Sixty percent less plastic, lower cost, and same performance? How did they pull that off? Lucas: They started with a fundamental shift in material choice. Instead of the standard multi-layer film — which is usually polyethylene, polypropylene, and a tie layer of something like EVOH — they switched to a mono-material polypropylene structure. One polymer. Fully recyclable. But the challenge is that a single-layer film has worse barrier properties. So you have to compensate somewhere else. Luna: Compensate how? Thicker film? That would eat into the savings. Lucas: Right, thicker would defeat the purpose. Instead, they changed the geometry of the pouch itself. They went from a standard pillow pouch to a slightly gusseted stand-up pouch. That allowed them to use a thinner gauge film — about 20 percent thinner — because the shape distributes stress better. The pouch doesn't burst during shipping. And they added a very thin silicon oxide coating on the inside layer. That's a fraction of a micron, but it blocks oxygen almost as well as EVOH. Luna: So the material cost per pouch actually went down because the film is thinner, even with the coating. Lucas: Exactly. They calculated that the new pouch costs 12 percent less per unit on raw materials alone. But the real savings came from operations. The old multi-layer film required slower sealing temperatures — you had to be careful not to melt the inner layer while still bonding the outer layers. The new mono-material seals at a higher temperature, faster. They increased their vertical form fill seal line speed by 18 percent. Luna: That is a huge gain. So they are producing more packages per hour with less material, and the packages are recyclable. What about the supply chain side? Did they have to find new suppliers? Lucas: They did. The coating technology is specialized, and not every film supplier offers it. They ended up qualifying a new vendor — a small specialty film extruder in Ohio — and that took about four months of testing. But the lead time from that vendor was actually shorter because the mono-material film is simpler to produce. No co-extrusion of multiple layers. So their inventory risk went down. Luna: I want to ask about the cost of retooling. Did they have to buy new packaging machines? Lucas: No new machines. They modified the existing form fill seal machines. The biggest change was replacing the seal jaws with a set that has a different temperature profile and a slightly different surface texture. That retrofit cost about twenty thousand dollars per line. They have three lines, so sixty thousand total. They recouped that in less than two months from the material and speed savings. Luna: And that's before you even account for the waste reduction in their own plant. Because with mono-material, scrap from start-up and changeovers can be recycled internally. Lucas: Right. In the old process, any scrap film — maybe three to five percent of total volume — had to be landfilled because you cannot separate the layers economically. Now, all scrap goes back to the pelletizer and gets blended into non-food-grade applications. They reduced their landfill waste from packaging by over 70 percent. Luna: And that brings us to the sixty percent number. How did they get to that exact figure? Lucas: They measured it in terms of plastic weight per package. Before, each pouch weighed about 8.2 grams. After, it's 3.3 grams. That is a 60 percent reduction. But they also reduced the outer carton — they redesigned the case pack to use a smaller corrugated box because the new pouches are more compact. So total packaging waste per unit of pasta dropped by even more. Luna: So the 60 percent is just the plastic part. The overall packaging footprint is smaller. Lucas: Yes, and that matters for transportation. More pouches per pallet. Lighter pallets. They estimated about eight percent fewer trucks needed per year for the same volume of pasta. That's a secondary savings. Luna: And I'm guessing the shelf life testing was a big part of the 18-month timeline. Lucas: That was the longest phase. They had to run real-time shelf life studies for 12 months to be sure the pasta didn't get stale or absorb moisture. They also did accelerated testing at elevated temperature and humidity. The new pouch actually performed slightly better than the old one in terms of moisture barrier — the silicon oxide coating is really effective. But they had to prove it to their retailers. Luna: Retailers can be skeptical of any packaging change, especially for a staple product. Lucas: Absolutely. Walmart and Kroger both require documentation. Prairie Pasta had to submit test results showing that the new package met their standards for shelf life, drop test performance, and appearance. That took another three months of back and forth. But once they got approval, the rollout was fast — they converted all SKUs within six weeks. Luna: And now, a year after full rollout, what are the numbers? Are they still hitting the savings? Lucas: They are. The material cost savings have held steady. Line speeds are actually a bit higher now because the operators have dialed in the new settings. The only hiccup was a brief period last winter when the silicon oxide coating supplier had a quality issue — two batches had inconsistent coating thickness. That caused a few pouches to fail seal integrity tests. They worked through it with tighter incoming inspection. Luna: So it's not perfect, but it's working. Lucas: Right. And the key operational lesson here is that packaging waste is not just an environmental metric — it's a cost metric. Every gram of plastic you don't use is a gram you don't buy, don't handle, don't dispose of. Prairie Pasta treated this like any other lean project: measure, test, implement, iterate. The sustainability outcome was a side effect of better operations. Luna: I think that's a really important framing. A lot of companies treat sustainability as a PR initiative that costs money. This is a case where it saved money. Lucas: And honestly, if today's episode was worth a coffee to you, that's the link — buy me a coffee dot com slash fexingo. It helps us keep these conversations ad-free and focused on real operations stories. Just something to consider. Luna: Yeah, listener support really does make a difference. And we appreciate every bit of it. Lucas: So the thing that stood out to me most about Prairie Pasta's approach is that they didn't outsource the problem to a packaging engineer. The operations team led the project. The plant manager was the sponsor. Luna: That is unusual. Usually those projects get handed to R&D or marketing. Lucas: Exactly. And because operations owned it, they prioritized things that actually matter on the line — seal strength, line speed, changeover time — not just recyclability. The marketing team would have probably wanted a fancy new look, but operations kept the design almost identical. Just a small recycling logo and a note about the new material. Luna: I think that's a great lesson: let the people who run the process drive the improvement. Lucas: For Prairie Pasta, that saved them hundreds of thousands of dollars. And it cut plastic waste by 60 percent. Sometimes the best sustainability strategy is just better operations. Luna: And that's a wrap for this episode. Thanks for listening.