Choosing between a vertical FFS machine and a cup filling and sealing machine for your liquid product? This guide compares them across key dimensions—speed, waste, and product suitability—to help you make the right call for ketchup, sauce, oil, and more.
If you're packaging liquids like ketchup, cooking oil, or window cleaner, you've likely hit this fork in the road: a vertical form-fill-seal (FFS) machine for pouches, or a cup filling and sealing machine for rigid containers. They both fill and seal, but they're designed for fundamentally different packaging strategies.
When I first started handling packaging line procurement for a mid-sized sauce manufacturer, I assumed the decision was mostly about volume. Higher output? Go with FFS. Smaller batch? Stick with cups. It made sense on paper. But after overseeing the installation of both systems across three production facilities in the last five years—including a particularly chaotic ramp-up in 2023 where we swapped a cup line for an FFS line mid-quarter—I can tell you the real differences cut deeper than throughput numbers. Let's break down where each system actually excels, and more importantly, where they don't.
“The question isn't which machine is better. It's which packaging format your supply chain and end customer actually want.”
Vertical FFS machines take a flat roll of film, form it into a pouch, fill the liquid, and seal the top—all in one continuous vertical motion. Think spout pouches for motor oil or standing pouches for soy milk. The packaging is created as part of the process.
Cup filling and sealing machines start with pre-formed rigid containers (cups, tubs, bottles). The machine indexes each container into position, fills it, seals on a lid (often foil), and ejects the finished product. The container already exists when it arrives at the filling station.
Already you can see one trade-off. FFS creates packaging from scratch, which means less material handling upstream. Cup fillers need an inventory of empty containers, which takes up floor space and adds cost. But—and this is critical—cup fillers offer structural rigidity and a premium feel that pouches sometimes lack. Whether that matters depends entirely on your product and shelf positioning.
This is the dimension where most people get tripped up. They assume any liquid can go into any format. Not quite.
Here's what I tell clients: If you're packaging cooking oil or soy milk for retail, a spout pouch on a vertical FFS machine is hard to beat on cost per unit. If you're packaging ketchup or a premium sauce for food service where stackability and durability matter, a cup filler often wins despite higher container cost.
Let's talk numbers—and a common misconception.
A mid-range vertical FFS machine can run at 40-70 pouches per minute, depending on film width, pouch size, and fill volume. A good cup filler, by comparison, can handle 50-80 cups per minute for smaller sizes.
On paper, they're similar. But here's what the spec sheet doesn't show you: changeover time.
They're not that far apart. But consider this: if you run 10 SKUs per day, you lose 8+ hours to changeovers regardless of which machine you choose. That changes your effective output. Let me use an example from my experience.
In July 2023, a client needed to package a run of 5,000 units of a specialty ketchup in 200ml cups for a trade show. Their cup filler was already running a different product. Switching the line meant stopping production on their main volume product for 2 hours. The cost of that delay—in lost output and overtime—was about $1,200. They ended up paying a contract packager to run the specialty batch on an FFS machine in pouches, at a cost of $450, and shipped it overnight. Total cost: $550. Saved $650, and didn't disrupt the main line.
The point: raw machine speed is less important than how easily the system fits into your overall production schedule.
In my experience, vertical FFS machines tend to have slightly higher unplanned downtime due to film track jams and heat seal issues, particularly with thinner films or higher moisture products. Cup fillers, being mechanically simpler (no film forming mechanism), generally run more predictably. Based on our internal maintenance logs across 8 machines over two years, our cup fillers had about 6% unscheduled downtime against 9% for vertical FFS. Neither is catastrophic, but in a high-volume operation, that 3% difference matters.
This is where the comparison gets interesting—and potentially counterintuitive.
Vertical FFS machines run on rollstock film. The machine forms the pouch, which means there is some inevitable trim waste at the edges—particularly on stand-up pouches and spout pouches where the seal shape isn't a simple rectangle. Typical film utilization is 85-93%. For a machine running 1 million pouches a month at $0.04 film cost per pouch, that's a monthly waste value of $2,800 to $6,000 in film alone.
Cup filling and sealing machines use pre-formed cups and pre-cut lidding foil. The cup itself represents the biggest cost—usually 3-5x the film cost per pouch unit. Lidding foil waste is minimal (the machine cuts a diameter slightly larger than the cup).
So at first glance, FFS wins on material cost. But here's the nuance: returns and rejected product. If a cup filler mis-seals, you lose one cup—about $0.10-0.15. If a vertical FFS machine mis-seals, you lose the entire pouch plus the film that formed it. But more importantly, a leaky spout pouch in transit can damage 20 other pouches in the same case. I've seen exactly that happen: a batch of 1,000 spout pouches of motor oil suffered a 3% seal failure rate, leading to 63 damaged pouches in transit—loss value around $250 plus a customer dispute. With a cup filler, the rigid container is inherently more robust in case of seal issues.
Honestly, the waste calculation boils down to this: If your product has a high rejection cost due to strict quality standards, the cup filler's per-unit waste simplicity may justify the higher packaging cost. If you're running high volume with stable quality, FFS is almost always cheaper per unit.
Initial equipment cost. A decent vertical FFS machine for liquid pouches runs $40,000 to $80,000 depending on features, fill accuracy, and whether it handles spouts. A cup filler of similar capability runs $50,000 to $100,000+. Both are capital investments that need to be depreciated over 5-7 years.
Flexibility. Cup fillers are easier to repurpose for different products within the same container format—change the fill nozzle, change the product, run. Vertical FFS machines can accept different film types and widths, but a significant shift (say, from forming a flat pouch to a spout pouch) requires a machine modification that can cost $15,000+ and take weeks.
Here's something I've learned the hard way: If you anticipate changing your packaging format every 2-3 years, or you need to run a wide variety of product types on a single machine, the cup filler's tooling modularity might be worth the premium. If you're committing to a specific pouch design for 5+ years, FFS is the obvious choice.
“I'm not a packaging engineer, so I can't speak to the wear rates of specific sealing jaw materials. What I can tell you from a production management perspective is: pick the format that matches your product and your five-year plan, then let the machine follow.”
Let me give you the scenario-based recommendations rather than declaring a winner.
One final note: this was accurate as of early 2025. The packaging machinery market moves fast—new multi-format machines are emerging that blur the lines between FFS and cup fillers. I'd recommend verifying current pricing and capability with two or three equipment vendors before committing to a final decision.