A beer canning machine is one of the biggest investments a brewery makes outside of the brewhouse itself. Once it's installed, it will run for years, so the questions you ask before signing an order matter just as much as the machine specs themselves. Many buyers focus only on price and speed, then run into problems later with parts, support, or a line that doesn't match their actual production needs.

Most breweries only go through this buying process once every several years, so it's easy to miss the questions that matter until something goes wrong on the line. A supplier who welcomes detailed questions and answers them with real numbers is usually more trustworthy than one who rushes you toward a quote. Take the time upfront, because the cost of a wrong decision shows up later in downtime, rework, or a line that never quite performs the way the sales sheet promised.

Here are the questions worth asking any canning machine supplier before you buy, along with why each one matters and what a good answer sounds like.

What is the actual production speed at your product's viscosity and carbonation level?

Suppliers often list a machine's top speed under ideal conditions, usually tested with water or a low-carbonation liquid. Real beer, especially higher carbonation styles like IPAs, stouts, or hazy beers, can behave differently on the line. Higher carbonation means more foam risk, which often means the machine has to run slower to keep fill levels accurate and oxygen pickup low.

Ask the supplier to confirm expected output specifically for your beer style, not just a generic number from a spec sheet. A useful follow-up question is whether they have run trials or have customer data for a similar beer style and can size, since a supplier with real production experience across different beer types will usually have this on hand. If they can only quote the theoretical maximum speed, treat that number as a ceiling rather than what you should expect day to day.

It also helps to ask the supplier to translate their speed rating into something you can plan a shift around. Canning speed is usually quoted as cans per minute, and it's worth asking the supplier to convert that into barrels per hour for your specific can size, then walking through how many hours it would realistically take to can a full batch, including setup and cleanup time on either end. That gives you a much more useful planning number than a raw cans-per-minute figure on a spec sheet.

It also helps to ask how speed changes across can sizes. A line rated for one can size may run at a different speed for a taller or slimmer can, and this can affect your throughput planning if you package in more than one format.

How does the machine handle foam and oxygen control?

Oxygen pickup during canning is one of the biggest factors in shelf life and flavor stability. Too much dissolved oxygen in a finished can leads to faster staling, oxidized flavors, and a shorter drinkable window for the beer, which is a serious concern for hop-forward styles in particular.

Ask what fill method the machine uses. Counter-pressure filling is standard for most craft canning lines because it fills the can under CO2 pressure, which reduces foaming and oxygen pickup compared to gravity filling. Ask how foam is managed at the seamer step, since foam that isn't controlled properly can push oxygen into the headspace right before the can is sealed.

It's also worth asking what total package oxygen (TPO) levels the supplier typically sees on their machines, measured in parts per billion. A supplier who can share real TPO data from their machines running actual beer, rather than only theoretical numbers, is showing you they understand the brewing side of the equation, not just the mechanical side.

Ask as well whether the machine supports pre-purging cans with CO2 before filling, since this is another common way to displace oxygen before the beer ever touches the can.

What level of automation does the machine actually require in daily operation?

"Automatic" can mean different things depending on the manufacturer, and this word alone shouldn't be taken at face value. Some machines described as automatic still need an operator loading empty cans by hand, monitoring fill levels visually, or checking seam quality with manual tools throughout the shift.

Ask exactly how many staff members are needed to run the line for a full shift, and what tasks are automated versus manual at each stage: can infeed, rinsing, filling, seaming, date coding, and packaging. It's also worth asking what happens if a can jams or a seam fails mid-run. Does the machine stop automatically and flag the issue, or does it require an operator to be watching closely enough to catch it themselves?

If you're a small or growing brewery, also ask how much training a new operator typically needs before they can run the line independently, since this affects how quickly you can bring on staff or cover shifts.

Is the seamer pneumatic, and what does that mean for seam quality?

Pneumatic refers to using compressed air to power a mechanism, and it's a common way many parts of a canning line get their work done. But when a pneumatic cylinder is used to push the seaming rollers against the can, the compressibility of the air inside the cylinder can make it harder to hold the rollers in a perfectly consistent position. This can cause slight movement during the seam and lead to less even results over time.

Because of this, many canning lines rely on a locked mechanism, such as a cam or a wedge-style linkage, to hold the seaming rollers firmly in place instead of relying purely on air pressure. Ask the supplier directly how the seaming mechanism is engineered, whether it uses a locked or cam-driven design, and how seam consistency is maintained as the machine ages and parts start to wear. A supplier who can explain this clearly, rather than only saying the machine is "automatic," is showing a deeper understanding of what actually keeps seams tight over the long run.

How readily available are spare parts, and where are they stocked?

A canning line that goes down without available parts can cost a brewery thousands per day in lost production and disrupt a packaging schedule that's often booked around brew days and distributor deadlines. Ask whether critical wear parts, such as the seaming chuck, rollers, valves, and seals, are stocked locally or need to ship from the manufacturer's home country, and what the typical turnaround time looks like in each case.

It's also worth asking whether the supplier recommends buying a starter spare parts kit at the time of purchase. Many manufacturers offer a kit of the most commonly replaced wear parts, which can be far cheaper and faster than ordering a single part later once something has already failed. Ask what's included in this kit and how long those parts typically last under normal use.

Finally, confirm whether parts are proprietary to that manufacturer or based on common industry standards. Standard components are often easier and cheaper to source or replace locally, even years after the original purchase.

Can I see the machine running, or speak with an existing customer?

A factory video, a live video call showing the machine in operation, or contact with a current customer running the same model can tell you more than a spec sheet ever will. Watching the machine run, even remotely, lets you see real fill consistency, seam quality, noise level, and how smoothly cans move through each stage of the line.

Reasonable suppliers are usually willing to arrange a live demonstration or connect you with a reference customer, particularly one running a similar can size or beer style to yours. If a supplier is reluctant to provide this or only offers pre-recorded marketing footage, that's worth noting as you compare your options. Speaking directly with another brewery that has run the machine for at least a year will usually surface issues, such as recurring maintenance needs or parts delays, that don't show up in a sales conversation.

What certifications does the machine carry?

Certification requirements change depending on the country you're importing into, and this covers more than just electrical voltage differences. In the European Union, for example, equipment generally needs to carry a CE mark, which confirms the design meets certain safety standards and that the machine won't cause electrical interference with other equipment nearby. Other regions have their own equivalent requirements, so confirm which certifications the specific model you're buying carries, not just the manufacturer's general claims, since certification can sometimes vary by model or configuration.

It's also worth asking whether the certificates will be provided as original documents at the time of shipment, since some import processes and insurance providers require these on file before the equipment can be registered or covered.

What is included in the quoted price, and what isn't?

It's common for two suppliers to quote very different prices for what looks like the same machine, only for one quote to include things like training and shipping while the other only covers the bare unit. Get a clear, itemized breakdown of what each quote covers before comparing numbers side by side, and ask specifically what happens if something isn't included: is it billed separately later, or is it simply not offered at all?

It's also worth confirming exactly which shipping term the quote is based on, since this changes who is responsible for what along the way. Common terms include the buyer arranging pickup directly from the factory, the supplier delivering to the loading port and handling export clearance, the supplier arranging ocean freight and insurance to the destination port, or the supplier delivering all the way to your location with duties either included or handled separately. Ask the supplier to explain, in plain terms, exactly where their responsibility ends and yours begins under the shipping term they've quoted.

Freight costs can also shift with the season, so if your timeline is flexible, ask the supplier whether you're ordering during a period when freight rates tend to run higher, and whether waiting a month or two could realistically lower the shipping portion of your quote.

What Should I Ask a Supplier About After-Sales Support?

This is one of the most overlooked questions, and one of the most important, especially if you're buying from a manufacturer overseas. A machine can look identical to a competitor's on paper, but the support behind it is often what determines whether a breakdown costs you a day of production or a month.

Start by asking whether remote technical support is available and which time zones it actually covers, since a support line that's only staffed during hours that don't overlap with yours isn't much help in an emergency. Ask whether the supplier sends their own technician for installation and commissioning, or whether this is handled through a local partner instead, since that changes both the quality and the speed of support you can expect. Warranty terms are worth asking about directly too: how long the coverage lasts, and whether it covers parts only or labor as well.

It's also worth asking how spare parts are sourced once the machine is running in your country, and whether there's a service manual or training video library available in your language so your team isn't left guessing during a routine issue. Perhaps most importantly, ask for a guaranteed response time if something breaks down, stated in hours rather than a vague promise of "quickly," and confirm how that response is actually delivered, whether that's a phone call, a video call walkthrough, or an on-site visit.

If the supplier offers video call support for troubleshooting, ask if this has actually worked for other customers in the past, or if it's mostly untested in practice. A supplier with a track record of resolving issues remotely, rather than only promising to, is worth more than one with a longer feature list on paper.

How long is the lead time from order to delivery?

Lead times for canning machines can range from a few weeks to several months depending on how customized the machine is and how busy the manufacturer's production schedule is at the time you order. Ask for a realistic timeline broken into stages, such as manufacturing time, testing time, and shipping time, rather than a single combined estimate.

It's also worth confirming what happens if the timeline slips. Does the supplier communicate delays proactively, and is there any penalty or compensation built into the contract for missed delivery dates? If you're timing the purchase around a specific production or launch date, build in a buffer, since international shipping timelines can shift due to factors outside the supplier's control, such as port congestion or customs delays.

Can the machine be upgraded or expanded later?

If you expect production to grow, ask whether the line can be scaled up later, for example with a higher speed module or additional filling heads, or whether you'd need to replace the whole unit once you outgrow it. Some manufacturers design machines with modular upgrade paths in mind, while others sell a fixed configuration that can't be meaningfully expanded.

Ask directly what the upgrade path looks like for the specific model you're considering, what it typically costs, and how much downtime an upgrade usually requires. If you're currently a smaller operation but expect meaningful growth over the next few years, this question can save you from buying a machine that already needs replacing by the time your volume catches up.

How much floor space and utility capacity does the machine require?

Before finalizing a purchase, confirm the machine's footprint, height clearance, and utility requirements, including compressed air, electrical supply, water, and drainage. Ask for a layout drawing or installation guide so you can check it against your actual facility space before the machine arrives. Discovering a mismatch after delivery, such as insufficient ceiling height or an underpowered electrical supply, can cause costly delays to installation.

How do I clean and maintain the machine?

Ask the supplier to walk you through their recommended cleaning process before you buy, not after. Most canning lines are cleaned using a clean-in-place process, where cleaning solution is circulated through the beverage lines and machine surfaces without needing to disassemble everything by hand.

Ask specifically what type of cleaning agents the manufacturer recommends. Some materials used in canning lines don't hold up well to harsh caustic cleaners, so many suppliers recommend a gentler alkaline cleaner instead, run through the lines for a set time and temperature. Confirm whether the manufacturer provides a written cleaning schedule and product recommendations, or whether you'll need to work that out yourself through trial and error.

It's also worth asking what routine maintenance the machine needs beyond cleaning, such as lubrication points, filter changes, or seal replacements, and roughly how much time this adds to a normal production day.

What does the training process look like for our team?

Ask how training is delivered, whether that's an in-person visit during installation, video-based training, or a combination of both. Confirm how many staff members can be trained, how long the training period typically takes, and whether refresher training or documentation is available later if staff turn over. A team that's confident operating and troubleshooting the machine from day one will get far more consistent output than one left to learn by trial and error.

Final thought

The right questions before you buy will save far more time and money than a lower quote ever will. A supplier who answers clearly, backs up claims with real data, and offers solid after-sales support is usually the safer long-term choice, even if it's not the cheapest one on paper.

Before signing anything, it can help to write out these questions in advance and go through them with each supplier you're considering, rather than relying on memory during a call. Keeping notes on how each supplier answers, and how quickly and clearly they respond, often reveals as much about them as the answers themselves. The supplier who takes the time to walk you through these details thoroughly is usually the one who will still be there to support you three years into owning the machine.