Hey there, fellow soap makers and small business owners! If you’ve got a soap making machine sitting in your workshop, storage space, or even a corner of your garage right now, you might be wondering: “How do I actually store this thing long-term without it getting ruined?” Trust me, I’ve been there. I’m part of a team that sells soap making machines (we’ve shipped hundreds of them to folks just like you over the last 8 years), and let’s be real—half the issues people have with their machines aren’t from using them wrong, it’s from storing them like a random hunk of metal instead of the expensive, precision piece it is. Soap Making Machine

I’ve seen it all: a guy left his small manual mixer out in his warehouse through winter, and when he tried to fire it up in spring, the motor seized because of rust. Another client stored their big automatic plodder in a damp basement, and the rubber liners molded so bad they had to replace them right before a huge custom order. And yeah, we’ve even had folks buy a used machine from us that was stored in a backyard shed, and the wiring was chewed by rodents. Don’t be that person. Storing your soap making machine properly doesn’t have to be complicated—you just need to follow a few simple, science-backed steps that we’ve tested time and time again with every machine we sell.
First off, let’s get one thing straight: pre-storage prep is 90% of the battle. You can’t just wipe down your machine in 2 minutes and call it a day. Soap has oils, lye, glycerin, and other ingredients that are super sticky, and if you let those sit on metal or rubber parts, they’ll break down materials, attract gunk, or even react with metal to cause rust over time. This is non-negotiable, no matter what size machine you have.
Let’s break that prep down part by part. First, unplug it. Duh, right? But you’d be shocked how many people forget this and end up yanking a cord while cleaning, or get a tiny shock (not fun, especially if your hands are wet). Once it’s unplugged, take off any removable parts first—like the mixing paddles, plodder heads, molds if they’re attached, or the small hopper caps. Don’t just yank them off; check your machine’s manual (if you lost it, shoot us a message, we can send a digital copy quick) to make sure you’re not forcing anything. Those parts are usually made of stainless steel, rubber, or food-grade plastic, and each needs a slightly different clean.
For stainless steel parts? Skip the harsh scouring pads—they scratch the surface, which makes it easier for soap residue and moisture to get trapped later. We always tell our clients to use warm water and a tiny bit of dish soap (mild, no citrus scents—citrus can leave a residue that messes with future soap batches) and a soft cloth or nylon brush. Wipe every crevice, especially around the paddles and where they connect to the motor—soap gets stuck in there like crazy. For really tough, caked-on soap? Soak the parts in warm water with a splash of white vinegar for 15 minutes. Vinegar cuts through lye residue without damaging the metal.
Now the non-removable parts—like the motor housing, the main body of the plodder, or the control panel. This is where people mess up. Don’t spray water directly on the motor or control panel—we see this all the time, and it’s a fast track to a dead motor. Instead, take a damp (not soaking) cloth, wipe those parts down, and then immediately dry them with a dry microfiber cloth. For the control panel, if there’s any sticky gunk on the buttons, use a tiny bit of rubbing alcohol on a corner of the cloth—just make sure it’s not dripping. Alcohol evaporates fast, so you won’t have moisture sitting there.
And don’t forget the hidden spots! The underside of the machine, the area where the power cord wraps, the base of the motor—we once found a client’s machine that had a handful of old soap bits and a half-eaten granola bar under it when we came to pick up a replacement part. Gross, and those food bits attract pests, which is the last thing you want when your machine is in storage. Once every last spot is wiped down and dry, let the machine sit for 2 hours (yes, literally just let it air dry) to make sure no hidden moisture is left. Even a tiny drop of water can turn into rust if it’s sealed up.
Okay, prep done. Now you need to think about where you’re storing it. This isn’t just “any empty space will do.” Soap making machines are heavy—especially the automatic ones that do plodding, cutting, and molding all in one. You can’t stack stuff on top of them, and you don’t want them sitting on a concrete floor that’s damp year-round.
First, check the environment’s temp and humidity. The ideal range is between 50°F and 85°F (10°C to 29°C) and humidity under 60%. Why? Below 50°F, metal parts can contract and seal up (that’s how motors seize), and rubber parts (like plodder liners) can get brittle and crack. Above 85°F, rubber and plastic parts can warp or melt a little, and humidity over 60% is a rust and mold party. We’ve had clients store small machines in unheated garages in the Midwest during winter, and that’s a disaster—even if it’s just for a month. If your only option is a garage or basement, invest in a cheap dehumidifier (they’re like $30 at most hardware stores) or a small space heater to keep the temp steady.
Next, the floor. Concrete is porous, so it draws moisture up from the ground. Never set your machine directly on concrete. We always recommend using a pallet, a thick rubber mat, or even old wooden pallets (just make sure they’re treated so they don’t rot) to lift the machine at least 6 inches off the floor. That way, if there’s any moisture seeping up, it never touches the bottom of the machine. Also, pick a spot that’s not near any windows—direct sunlight can fade the machine’s exterior and make plastic parts get brittle over time, especially if it’s stored for more than a few months.
And pests! Rodents (mice, rats) and even insects like roaches love to make homes in the gaps of soap machines, especially if there’s any leftover food or soap residue. Once your machine is dry and set up on a pallet, cover it with a breathable cloth—like a cotton sheet or a machine-washable furniture cover. Don’t use plastic! Plastic traps moisture, which causes rust and mold. The cover keeps dust, pests, and sunlight off, but it lets air circulate. If you’re storing it long-term (more than 6 months), you can also put a couple of pest repellent sachets (the ones with cedar or peppermint oil—no harsh chemicals that could mess up your machine later) under the cover, just make sure they’re not directly touching any metal parts.
Now, let’s get into machine-specific storage tips, because a small manual mixer is way different than a big automatic plodder or a combined soap line. This is stuff we tell every client when they pick up their machine, so it’s tailored to what we sell.
First, manual machines (like the hand-crank mixers or small plodders that a lot of new makers use). These are usually lighter, have fewer electronic parts, but their moving parts (crank gears, paddles) are more exposed. For manual models, after cleaning all parts, you should lightly oil the moving metal parts with food-grade mineral oil. Wait—food-grade, not WD-40. WD-40 is for lubricating tools temporarily, but it leaves a sticky residue that will get into your soap when you use it next. Food-grade mineral oil is safe, and it creates a thin barrier that keeps rust away without messing with future batches. Just wipe off any excess oil with a cloth so it doesn’t attract dust. Also, for manual cranks, if you have a detachable crank handle, take it off and store it in a plastic bag with a label so you don’t lose it.
Then, semi-automatic and automatic machines. These have motors, control panels, and more complex wiring. For these, after the pre-storage clean, you should disconnect the power cord from the machine, wrap it neatly (don’t just ball it up—balling it can fray the wires over time), and tuck it into the machine’s base or a compartment if there is one. Never leave the power cord hanging loosely where it can get stepped on, chewed, or tangled. Also, for the motors, if you’re storing the machine for more than 3 months, you should turn the motor shaft by hand every month. A lot of people don’t know this, but if a motor sits unused for a long time, the internal bearings can seize up. Turning the shaft 5-10 times every month keeps those bearings lubricated and moving smoothly. If the motor is sealed (some newer models are), check your manual—most of ours aren’t, so manual rotation works great.
What about if you need to move the machine after storing it? Like, if you take it out of storage to make soap, then move it to a new workshop. That’s actually easier when you’ve stored it right. First, make sure all parts are secured—tuck in the cover, wrap the cord, double-check that removable parts are either attached or in a labeled plastic bag inside the machine. For heavy automatic machines, always use a dolly, don’t try to lift it yourself—you’ll hurt your back, and maybe damage the machine. When you set it back up, wait 24 hours after moving it (especially if you moved it through temperature changes) before turning it on. Temperature shifts can make moisture form inside the motor, so waiting lets that moisture evaporate.
Wait, I know a lot of you are asking: “How long can I store my machine before I have to use it?” We recommend not storing it for more than 12 months max. Even with the best prep, materials break down over time—rubber liners get brittle, metal gets tiny, invisible rust spots, and moving parts seize. If you know you’re not going to use it for more than a year, let us know when you buy the machine (or if you already have it and need storage advice) and we can adjust the steps—like adding extra rust protection or using a different type of cover.
I can’t stress this enough: we’ve tested every single one of these steps with the machines we sell. Last year, we had a client in Canada who stored his 20-pound automatic plodder in an unheated workshop for 10 months using all these tips, and when he fired it up, it worked like the day we delivered it. Another guy stored his small mixer in his basement for 8 months, skipped the oil step, and the gears seized—we had to send him a replacement gear, but if he’d done the oil, that never would’ve happened.
Look, your soap making machine is an investment. If you spent $500 on a small manual mixer or $5,000 on a big automatic line, you want it to last for years, not just a few batches. Bad storage is the number one reason people have to replace their machines early, and it’s totally avoidable.
If you’re still unsure about anything—like what parts to oil, if your cover is breathable enough, or how to prep your specific machine (whether you bought it from us or another supplier)—just reach out. We don’t do hard sales pitches here, we just help fellow soap makers keep their gear running. We can answer any questions, send you a free digital copy of your machine’s manual, or even chat about the best storage options for your space.

Don’t let a few lazy storage mistakes ruin your machine and your next big batch. Take the 2 hours to prep it right, find a good spot, and check in on it every month. You’ll thank yourself when you go to use it and it works perfectly.
Feed Pellet Machine Reference: Soap Manufacturing Equipment Maintenance & Storage Guidelines, National Association of Specialty Soap Makers, 2022.
Zhengzhou Fanda Machinery Co., Ltd.
Zhengzhou Fanda Machinery Co., Ltd. is one of the most professional soap making machine manufacturers and suppliers in China. Feel free to buy cheap soap making machine for sale from our factory and check the price with us.
Address: Zhisi Road, Zhongyuan District, Zhengzhou, Henan, China.
E-mail: vincenthan@fandamachinery.com
WebSite: https://www.fandapelletmill.com/