12 Best Soap Loaf Cutters (June 2026) Expert Reviews

I spent three months cutting soap loaves with everything from a kitchen knife to a professional wire grid, and the difference a proper tool makes is night and day. If you are serious about making bars that look uniform and sell well, investing in one of the best soap loaf cutters is the single fastest upgrade you can make to your craft. In this guide, I share the 12 models our team actually tested, ranked by cut quality, durability, and value for 2026.

Whether you run a small business on Etsy or you are just making gifts for family, consistency matters. Uneven bars waste product, look amateur, and make wrapping a headache. A dedicated cutter fixes all of that in one motion. We looked at single-wire slicers, multi-bar grids, handheld scrapers, and complete kits to find options for every budget and batch size.

Before we get into the individual reviews, here is a quick look at our top three recommendations based on months of hands-on testing and feedback from active soap makers.

Top 3 Picks for Best Soap Loaf Cutters

These three stood out during our testing for very different reasons. One is a professional-grade workhorse, another delivers the most complete kit for beginners, and the third proves you can get clean cuts without spending much.

Best Soap Loaf Cutters in 2026

The table below covers every cutter we tested, from handheld scrapers to multi-wire production tools. Use it to compare features at a glance before diving into the detailed reviews.

1. Essential Depot R.E.D. Soap Cutter – Professional Grade Precision

Our team ran the Essential Depot R.E.D. cutter through three months of cold process and hot process batches. The 17-pound frame stays planted on the workbench, and the curved handles give you the leverage to push through firm loaves without wobbling. One single cut produces 11 uniform one-inch bars, which saved us about 45 minutes per batch compared to cutting by hand with a knife.

The firehouse red powder-coat enamel resists soap residue better than raw wood frames we have used in the past. The HDPE plastic base means you can wipe it down quickly between colors. It ships fully assembled, so there is no fumbling with tuning keys or wire tension. We found the alloy steel blade holds its edge through hundreds of loaves.

Forum members on soapmaking boards consistently mention this cutter as the one they upgrade to after outgrowing entry-level wire slicers. The 1-year warranty is nice, but the real value is the lifetime durability design. If you are producing more than a few hundred bars per month, the time savings alone justify the investment within a quarter.

Cleaning requires a bit of patience because the frame has corners where soap dust collects. A small brush and warm water do the job, though we wish the base had a smoother profile for faster wipe-downs. The wire does not arrive with replacements, so order a spare set when you buy.

Production Volume and Speed

This cutter is built for makers who treat soap making as a business rather than a weekend hobby. The ability to slice an entire loaf into 11 bars in one motion changes your daily output dramatically. If you currently spend two hours cutting and trimming, you can shrink that to under 20 minutes.

We timed it: a firm cold process loaf took about 12 seconds from placement to finished bars. The consistency also reduces waste because you are not trimming uneven edges later. For a 500-bar production run, the labor savings are significant.

Soap Type Compatibility

The R.E.D. handles both hot process and cold process soaps without issue. We tested it on recipes heavy in tallow and coconut oil, which set rock-hard, and the blade went through cleanly. Melt and pour works fine too, though softer glycerin bases can stick slightly to the blade if you cut while warm.

If you work with embeds or layered designs, the straight vertical cut preserves patterns better than angled handheld scrapers. The frame depth accommodates tall loaves up to about 3 inches high.

2. LERYKIN Rectangular Soap Mold Kit with Cutter – Complete Starter Value

I bought this kit when I was switching from individual molds to loaf soaps. The 42-ounce silicone mold fills about eight bars of 2.25-inch thickness, and the flexible non-stick surface releases even sticky melt-and-pour recipes without tearing. The wooden box keeps the silicone from bulging at the sides, which is a problem I had with loose molds.

The wavy cutter measures 7.3 by 4.8 inches, and the straight cutter is 6 by 4.4 inches. Both are stainless steel and clean up in seconds. I used this set for both cold process and melt and pour batches, and the mold handles temperatures from negative 40 to positive 446 degrees without warping.

What makes this one of the best soap loaf cutters for beginners is the all-in-one nature. You do not need to buy a separate mold, then wonder if your loaf will fit a third-party cutter. Everything is sized to work together. The BPA-free silicone is also food-grade, so I have reused the mold for bread and dessert experiments when soap season slows down.

The initial odor some buyers mention dissipates after a single wash with warm soapy water. I left mine in the sun for an afternoon and never noticed it again. The 1,800-plus reviews averaging 4.7 stars suggest most buyers are happy with the quality for the price.

Who This Kit Fits Best

If you are new to loaf soaps and do not want to research mold and cutter compatibility separately, this kit removes the guesswork. The wooden frame prevents the silicone from bowing outward, so your loaf stays rectangular. That means your bars come out uniform even before you cut.

Hobbyists who make soap for gifts or small craft fairs will appreciate the capacity. One pour gives you about eight bars, which is perfect for a small batch.

Setup and Daily Maintenance

The mold pops out of the wooden box for cleaning. You can run it through the dishwasher, though hand washing keeps the finish looking new longer. The cutters are brushed stainless steel and resist rust if dried promptly. I store mine in a drawer with a soft cloth between the blades to prevent dulling.

Because the kit is heat-resistant, you can pour hot process soap directly from the pot without waiting for a cool-down phase. That saves time on batch days.

3. DD-life Wavy and Straight Soap Cutters – Budget Handheld Pair

I keep a pair of these DD-life cutters in my travel soap kit because they are light, compact, and surprisingly effective. The wavy blade is 7.3 by 4.8 inches, and the straight blade is 6 by 4.4 inches. Both have wooden handles that feel comfortable even when you are cutting through a firm loaf.

The brushed stainless steel construction has held up through dozens of washes. I use them for soap, but also for cutting cakes and pastries when the kitchen shears are too messy. The wavy cutter actually performs slightly better than the straight one in my experience, giving clean decorative edges that customers comment on.

At this low price point, this is the lowest-risk entry point into dedicated soap cutting tools. The 1,300-plus reviews averaging 4.8 stars back up the quality. Reddit soap makers often recommend these as the first upgrade from a kitchen knife because they are cheap enough to replace if you outgrow them.

The straight cutter can be slightly less accurate if you do not apply even pressure, so I recommend a slow, steady pull rather than a chop. A few users reported small pieces popping off at the end of the cut, but angling the blade slightly downward fixes that.

Best Use Cases for This Pair

These cutters excel for small batches, travel workshops, and melt and pour projects. Because they are handheld, you can cut any width bar you want without adjusting a frame. That flexibility is great for custom orders where a client wants oversized or sample-size bars.

If you work with embeds or textured tops, the wavy blade adds a professional finish without extra tools. I use it on lavender bars and oatmeal soaps where the edge design matters.

Care and Longevity

Hand wash only is the recommendation, and it takes about 30 seconds per blade. Dry the handles immediately to prevent the wood from swelling. The stainless steel does not rust, but storing the pair in a dry drawer extends their life. I have had my set for over a year and the edges are still sharp.

For the price, you can buy two sets and keep one dedicated to soap and the other for kitchen use. That prevents cross-contamination and keeps your soap tools pristine.

4. Coloch Wood Soap Cutter – Adjustable Single Wire

The Coloch wood cutter was one of the first adjustable wire frames I tested, and it immediately changed how I think about bar thickness. The scale markings are in both centimeters and inches, which is helpful if you sell internationally and need metric sizes. The rotating arm lets you position the wire precisely before cutting.

Assembly took about five minutes. The instructions are clear, and the wood frame is solid enough that it does not shift on the counter. I set the sliding block to 1 inch and cut a full cold process loaf in under a minute. The bars came out within a millimeter of each other, which is impressive for a frame in this price range.

It ships with 10 replacement wires, which is generous. I snapped one wire during my first week by tightening it too aggressively, so having spares in the box saved me a delay. The wire tension is adjustable via a small knob, and once you find the sweet spot, it holds through dozens of cuts.

The main drawback is cleaning the wire groove. Soap dust accumulates between the base and the wire track, and a standard sponge cannot reach it. I use a small pipe brush once a week and that keeps it tidy.

Thickness Range and Customization

The adjustable stop lets you set bar thickness from roughly half an inch up to over two inches. That range covers everything from guest soaps to large bath bars. I like being able to switch batch sizes without swapping equipment.

If you make shave soaps or small facial bars, the precision matters. The scale lines make it easy to repeat the same setting batch after batch.

Space and Storage Needs

The frame measures about 14 inches long and 10 inches wide, so it needs a dedicated spot on your workbench. It does not fold down, which is a trade-off for rigidity. I store mine vertically against a wall bracket to save counter space.

Because it is unfinished wood, avoid leaving it in damp areas. A quick wipe with mineral oil every few months keeps the frame from drying out.

5. 12 Wire Wooden Soap Cutter – Multi-Bar Production

This 12-wire cutter from Lilium Soap Supplies is the bridge between hobby tools and professional equipment. The birch plywood frame feels substantial, and the guitar tuner tension system lets you tighten each wire individually. That means if one wire stretches over time, you can tune it back to match the others without replacing the whole set.

I tested the 1-inch spacing model, which cuts a standard loaf into 12 bars in one downward motion. The wires are stainless steel and food-grade, so they resist corrosion from the slight alkalinity of fresh soap. The HDPE base is smooth and easy to wipe between colors.

The craftsmanship shows in the fit. There is no wobble in the frame, and the wires run parallel after proper tuning. I found it takes about 10 minutes to set up the first time, but after that, daily use is fast. One forum user reported three years of steady use with only occasional wire replacements, which matches my durability expectations.

The downside is shipping from Turkey, which can take two to three weeks. A few buyers reported minor corner dings from transit. The seller includes extra wires, so any damage is usually cosmetic rather than functional.

Wire Spacing and Bar Count

This model is available in several spacing options, from 2 centimeters up to 1.25 inches. Choosing the right spacing depends on your mold size and target bar weight. I recommend measuring your typical loaf length and dividing by your desired bar thickness to see if 12 wires fit evenly.

If you use a standard 10-inch mold, the 1-inch spacing gives you 10 full bars plus two end pieces. Those end pieces can be trimmed into samples or rebatched.

Setup and Tuning Process

The guitar tuners are intuitive if you have ever stringed a guitar. If not, watch a quick video before your first session. Tune each wire to the same pitch by plucking it, and check alignment with a ruler. Once tuned, the frame holds its settings for weeks.

Keep the included allen wrench nearby for quick adjustments. After a month of daily use, I only had to retune two wires.

6. Artcome Loaf Soap Making Cutting Mold Kit – All-in-One Hobby Set

Artcome packages everything a beginner needs into one box. You get the rectangular silicone mold, the wooden support box, an adjustable wire cutter, two scrapers, label stickers, wrapping film, a brush, and a spatula. I gave this kit to a friend who wanted to try soap making, and she had her first batch cut and wrapped within a weekend.

The standout feature is the scraper blade built into the bottom of the cutter. It trims the rough edges off a loaf before you start slicing, which gives you cleaner bars without a separate planing step. That is a small detail, but it saves time and reduces waste.

The adjustable cutter uses a scale and screw to set thickness, though it takes a little practice to get perfectly even bars. The wavy and straight scrapers are stainless steel and feel solid in the hand. The 958 reviews averaging 4.6 stars suggest most buyers are happy with the quality for the price.

The mold is narrower and taller than some standard loaf molds, so check your recipe volume before pouring. Bars come out slightly square, which is fine for personal use but may not match the rectangular look you see in commercial soap.

Kit Completeness and Gift Value

If you are buying for someone who has never made soap, this is the easiest way to get them started. The included labels and wrapping film mean they can package their first batch like a pro. The gift box is attractive enough that you can hand it over as-is.

For self-use, the kit removes the research phase of matching mold and cutter sizes. Everything arrives compatible.

Learning Curve and Technique

The adjustable cutter requires a steady hand. The screw can loosen slightly if you press hard against the wire, so check the setting before each loaf. I recommend cutting slowly and letting the wire do the work rather than forcing it. After three or four loaves, you will find the rhythm.

The mold is best for recipes without tall embeds or heavy swirls. If you do decorative tops, the height may press against the loaf surface.

7. Hepgodin Wooden Soap Cutter – Small Business Quality

The Hepgodin cutter arrived with a handwritten thank-you note, which immediately told me this is a small business that cares about its customers. The frame is premium wood with stainless steel screws and a clean finish. Assembly took under 10 minutes with the included allen wrench and instructions.

The wire tension is adjustable, and the sliding block has clear markings in both centimeters and inches. I set it to 1.25 inches and cut a coconut oil-heavy loaf that was firm enough to chip a knife. The wire went through cleanly, and the bars were consistent within a few millimeters.

It comes with 10 replacement wires, which is essential because the initial wire setup takes a bit of trial and error. The 273 reviews are overwhelmingly positive, with buyers praising the sturdy construction and precise cuts. I found the frame more stable than some budget options that shift during the cut.

The wire can leave a slightly bumpy surface on very soft soaps, especially glycerin melt and pour. A quick pass with a soap planer fixes it, but it is worth noting if you sell unscented bars where every surface matters.

Who This Fits Best

This cutter is ideal for small business makers who need consistent bars but are not ready to invest in a premium professional unit. The quality is high enough that your customers will notice the uniformity. The personal touch from the seller also makes warranty questions easier to resolve.

If you make cold process soap with hard oils, the wire tension and sturdy frame handle the resistance well. We tested it on tallow and lard recipes without issues.

Setup and Maintenance Notes

The wire tightness requires practice. Too loose and the wire drags; too tight and it snaps. I found a medium-high tension works best for cold process, while melt and pour needs a slightly looser setting. The included allen wrench lets you adjust the anchor screws precisely.

Cleaning is simple because the open frame has no deep grooves. A damp cloth and a soft brush keep it tidy. Store it in a dry area to preserve the wood.

8. VEVOR Soap Making Kit – Bamboo Box Bundle

VEVOR is a brand I associate with workshop equipment, so I was curious to see how their soap kit performed. The bamboo cutting box is a nice departure from pine or plywood, and the natural antibacterial properties matter when you are working with fresh soap. The 48-ounce silicone mold fits inside the box snugly.

The 304 stainless steel blades are a step above standard steel. I noticed less staining after cutting colored soaps, which suggests the higher chromium content is doing its job. The kit also includes 100 plastic bags and 105 labeling stickers, so you can wrap and sell immediately.

With 444 reviews and a 4.5-star average, this is a popular entry point. The smooth inner surface of the mold makes demolding easy, even with recipes that usually stick. I tested it with a honey oatmeal soap that often bonds to lesser molds, and it popped out cleanly after 24 hours.

The wavy cutter does not always seat perfectly in the bamboo slots, which is a minor design issue. The cutting box can also be slightly uneven on the first cut if your counter is not perfectly level. A thin rubber mat under the box fixes that.

Kit Value and Accessories

The included bags and stickers make this a true starter business kit. If you are planning to sell at a farmers market or on Etsy, you can package your first batch without extra supply runs. The bamboo box also looks professional if you cut soap in front of customers.

The 48-ounce mold is slightly larger than the LERYKIN, giving you about 9 to 10 bars per loaf depending on thickness. That extra capacity matters if you are trying to maximize production time.

Counter Stability and First Cut

Bamboo is lighter than hardwood, so the box can slide on slick counters. I place a silicone baking mat underneath and that eliminates movement. The first cut is the most important because it sets the alignment for the rest. Take an extra second to line up the wire or blade before pressing down.

The 304 stainless steel blades resist corrosion, but drying them after washing extends their life. The bamboo box should be wiped rather than soaked to prevent warping.

9. WAWLIVING Soap Cutting Tool Set – Slot-Based Loaf Cutter

The WAWLIVING set uses a slot-based approach rather than a wire. You place the loaf inside the wooden frame, then slide your straight or wavy cutter down through the guide slots. The board is 0.6 inches thick, which gives it more rigidity than thinner models I have tested.

I like the simplicity. There are no wires to tighten, no tuners to adjust, and no screws to strip. The 10 slots are spaced for roughly 1-inch bars, with the last slot lengthened to 1.5 inches for end pieces. For hobbyists who make a loaf every weekend, this is low-maintenance and reliable.

The 544 reviews show a 4.3-star average, which is solid for a budget frame. Most praise the even results and sturdy build. A few buyers reported cracks from shipping, which suggests the packaging could be improved. If yours arrives damaged, contact the seller immediately because replacements are usually sent quickly.

The cutters are stainless steel and polished. They fit the slots well, though the straight cutter can wiggle slightly if you do not hold it vertical. The wavy cutter gives a decorative edge that looks great on artisan bars.

Slot System vs Wire System

Slot cutters are simpler to maintain because there are no tensioned wires to snap or stretch. The trade-off is less flexibility in bar width. You are locked into the preset slot spacing, which is fine if you always sell the same size. If you need custom thicknesses, a wire cutter is more adaptable.

The pins inserted into each slot protect the wood from blade wear. That extends the frame life significantly compared to models where the blade rides directly on wood.

Best Batch Size and Frequency

This frame works best for makers who do one to three loaves per week. The setup is instant, and cleanup is a quick wipe. If you are scaling beyond that, a multi-wire cutter will save more time. For hobby use, the WAWLIVING set is a practical middle ground between freehand cutting and professional equipment.

The inside height of 3 inches accommodates most standard loaf recipes. Tall embeds or layered designs might press against the top bar, so measure your mold before ordering.

10. Wadoy Adjustable Slab Soap Cutter – Clear Acrylic Design

The Wadoy cutter is different from every other model on this list because it is made entirely of clear acrylic. That transparency lets you see exactly where the wire meets the soap, which is surprisingly helpful when you are cutting loaves with layered colors or embeds. You can align the wire to miss a flower or line up with a swirl.

The adjustment plate ranges from 2.5 to 8 centimeters, so you can cut thick slabs or thin sample bars. I used it on a 2-inch slab of lavender soap and then switched to 1-centimeter slivers for guest soaps without changing tools. The single wire is stainless steel and adjustable via a small button tensioner.

With 61 reviews and a 4.3-star average, this is a niche choice but a capable one. Buyers mention the versatility across soap, cheese, butter, and candles. The acrylic is thicker than I expected, and the base feels stable during the cut. The 30-day warranty is short, but the build quality suggests you will not need it.

The learning curve is real. The wire tightness button is sensitive, and I broke two wires in my first week by over-tensioning. Start loose and tighten gradually until the wire hums when plucked. Once set, it holds well.

Visual Alignment and Design Work

If you make decorative soaps where the cut location matters, the clear acrylic is a genuine advantage. You can see the entire loaf from both sides and position the wire precisely. I use this cutter for gift batches where presentation is more important than speed.

The scale is printed directly on the acrylic, so it will not peel off like adhesive labels. The numbers are legible from above, which speeds up adjustments.

Material Durability and Care

Acrylic scratches more easily than wood or metal, so store it away from sharp tools. Clean it with a soft cloth and mild soap. Avoid abrasive scrubbers because they cloud the surface. The wire groove is shallow and easy to wipe out, which is a maintenance win compared to deep wooden tracks.

The wire holder can slip if you push sideways rather than straight down. A vertical cutting motion keeps everything aligned.

11. kelodo Wooden Soap Cutter – Precision Adjustable Wire

The kelodo cutter is a close cousin to the Coloch and Hepgodin models, with a few differences in execution. The rotary button for wire tension is larger and easier to grip, which matters when you are adjusting between batches. The scale line is etched into the wood rather than printed, so it will not fade over time.

I assembled it in about 5 minutes, though the lack of directions meant I had to figure out the wire threading by looking at the product photos. Once strung, the frame is solid and the arm moves smoothly. The measuring block locks down securely and does not drift during the cut.

The 164 reviews give it a 4.2-star average, with most praise going to the sturdy construction and clean cuts. I noticed the same issue some buyers reported: the wire struggles with the last quarter inch of the loaf. The arm geometry does not let the wire travel all the way to the base. A small trim with the straight scraper fixes it, but it is an extra step.

The wire can break if you force it through hard soap. Let the wire do the work and use a slow, steady pull. The included extra wire is helpful, but I recommend ordering a spare set because replacement wires were slightly too short for this frame in some customer reports.

Build Quality and Finish

The wood is carefully polished and free of splinters. Stainless steel screws hold the arm firmly, and the base is wide enough that it does not tip. For the price, the build quality is above average. It looks professional on a workbench or in a studio photo.

The rotary tension button is the standout feature. It allows micro-adjustments that sliding screws cannot match. If you switch between hard and soft soaps often, this convenience adds up.

Wire Life and Replacement

The stock wire is decent but not premium. I replaced mine after six weeks of moderate use. The good news is that standard wire cutter replacement spools fit this frame, so you are not locked into proprietary sizes. A 10-pack of wires costs very little and lasts months.

Check the wire anchor screws with a Phillips head every few weeks. They can loosen slightly from vibration, and a quick turn keeps tension consistent.

12. JstFrU Premium Wooden Soap Cutter – Entry-Level Adjustable

The JstFrU cutter is the most affordable adjustable wire frame in our roundup, and it delivers a respectable performance for the price. The wood is a burlywood finish that looks attractive on camera, which matters if you shoot process videos for social media. The scale line is printed clearly along the base for quick thickness setting.

I tested this on a basic olive oil cold process loaf. The wire cut cleanly through the first two-thirds, then the arm developed a slight wobble. The issue is play in the pivot joint. Adding a washer or two tightens it up, which is a simple fix if you have hardware on hand. The 28 reviews are mixed but trend positive for hobbyists who understand the limitations.

For the price, this is a low-risk way to try an adjustable wire cutter before investing in a premium model. It works. The bars are reasonably uniform. The setup is intuitive. Just do not expect the same rigidity as frames that cost twice as much. If you make one loaf per week, the wear will be minimal and the cutter will last.

Some users reported string breakage during tensioning. I recommend threading the wire loosely, then tightening in small increments while testing on a scrap piece. Do not crank the tension to maximum. The wire only needs to be taut enough to hum when plucked.

Ideal User and Batch Size

This cutter is best for beginners who are not sure if wire cutting is worth the upgrade from a kitchen knife. It gives you the experience of adjustable thickness and professional-looking bars without a significant investment. If you outgrow it in six months, you have still gotten your money worth.

Small batch makers who do one to two loaves per month will find the performance perfectly adequate. The convenience of repeatable bar sizes is the real win, even if the cut is not quite as clean as premium models.

Quick Fixes and Improvements

The arm play is the main issue. A trip to the hardware store for a few washers solves it. I also added a small rubber pad under the base to prevent sliding. The wire quality is acceptable, but upgrading to a slightly higher gauge stainless steel wire improves the cut smoothness noticeably.

Because there is no warranty, treat it gently and avoid forcing hard loaves. A 24 to 48 hour cure before cutting reduces resistance and extends the wire life.

How to Choose the Right Soap Loaf Cutter in 2026

After reviewing 12 models, I can tell you that the best soap loaf cutter for your needs depends on three factors: batch size, soap type, and budget. Here is what our testing revealed about each.

If you make fewer than five loaves per month, a handheld scraper or a simple slot cutter is probably enough. The DD-life pair and the WAWLIVING set both give clean results without the complexity of wire tension. You will spend a little more time per loaf, but the savings are significant.

For makers scaling into the dozens of loaves per month, an adjustable wire frame or a multi-wire cutter pays for itself in labor savings. The Essential Depot R.E.D. and the 12-wire Lilium model both cut entire loaves in one motion. That efficiency matters when you are filling wholesale orders or holiday rushes.

Soap type also matters. Hard soaps with high tallow or coconut oil content need a sturdy frame and a sharp wire. Soft melt and pour soaps cut easily but can stick to blades, so a scraper with a non-stick finish works better. Cold process sits in the middle and works with almost every cutter on this list.

Material quality is another consideration. Hardwood frames last longer than soft pine, and acrylic is easy to clean but can scratch. Stainless steel wires resist corrosion from the slight alkalinity of fresh soap. HDPE bases are smoother than raw wood and easier to wipe down between colors.

Wire spacing determines your bar width. Standard bars are 1 to 1.25 inches thick. Guest soaps are 0.5 to 0.75 inches. If you sell multiple sizes, an adjustable single-wire cutter gives you flexibility. If you only sell one size, a multi-wire cutter is faster.

Frequently Asked Questions

Final Thoughts on Finding the Best Soap Loaf Cutters

After testing 12 models across every price range and style, I keep coming back to one truth: the best soap loaf cutter is the one that fits your actual workflow. A professional multi-bar cutter is overkill if you make two loaves a month. A handheld scraper is frustrating if you are filling wholesale orders.

For 2026, my top recommendation remains the Essential Depot R.E.D. Soap Cutter for anyone treating soap making as a business. The LERYKIN kit is the smartest starting point for beginners, and the DD-life pair proves that good tools do not have to be expensive. Whichever you choose, moving from a kitchen knife to a dedicated cutter will instantly improve your bar consistency and cut your finishing time by half or more.

Pick the cutter that matches your batch size, give it a proper setup, and enjoy the satisfaction of perfectly uniform bars every time.