How Many Shaves Do You Get Per Rustic Shave Soap Tin

Posted by Leighton Tyau on

In this article I set out to answer the question of how economical WSP's Rustic Shave Soap really is. Turns out that it really is fairly inexpensive per shave, even if you load the **** out of your brush.


The challenge in trying to figure out how many shaves you get per soap is that you have to load the brush on the soap. This process both adds water, and subtracts soap. And if you lid the soap after the shave, you trap the water inside. Also, no two brush loads are the same, as you'll see. You might use twice as much soap in one shave as another.

  • Use a medium size brush. WSP Monarch in High Mountain White was selected.
  • Overload the brush. Use up enough product to get at least 3 passes. Try to get enough for four passes just to be conservative.
  • Start measuring after a test lather. This way, the added water can be accounted for.
  • Weigh the tin of soap after each use. Photograph the result & the loaded brush.
  • Water used: Arizona's extra hard tap water.
  • Rinse, lather, repeat.

The Results

As you can see from the photos, we started with 102.6 grams of soap (tin included). Seven loads later, we are left with 93.9 grams of soap. Which averages out to 1.24 grams of soap were used per simulated shave.

Minimum Expected Shaves per tin of Rustic Shave Soap

So, given that each tin of soap contains at least 125 grams, we can expect at least 101 shaves which should last at least 3.33 months. And that's only if you load the shit out of that brush. If you use your soap conservatively, you can certainly stretch that number out to 6 months.

Maximum Expected Shaves per tin of Rustic Shave Soap

But what if you didn't need enough lather for 4-5 passes? How many shaves can you expect if you loaded the brush less?

Given the amount of soap in the brush, we can use up to 50% less soap per load, but that might only get you 1 and possibly two full rich & thick lathers. Which would give you possibly 200 shaves or close to seven months. But that's only if you're super stingy with your soap, and that kind of defeats the point. Enjoy your shaves! Rustic Soap is not expensive. Use it!

A normal load for a three pass shave would probably consist of 2/3 the amount of soap I loaded in these tests. Using that number, we can infer about 150 shaves or five months.

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How Many Shaves Do You Really Get Per Can of Shaving Gel?

Posted by Leighton Tyau on

How much will you save by switching to brush & soap? First we need to know how many shaves you actually get per can of shaving cream.

Edge says that you should get 40-60 shaves per can of their 7 oz shaving cream. Well, I put that claim to the test.

First, the methodology. The plan is pretty simple really. It's to 1) measure out how much gel is required per pass, 2) measure how much total gel is in that can, and 3) calculate the number of lathers a 7oz can will deliver.

How Much Shave Cream is Used Per Shave?

4.2 grams. That's probably the upper limit as to what a typical person would squeeze out of the can for one lather. So, for purposes of this calculation, we can therefore assume 3-4 grams of product is used per pass. Enough lather to cover your beard.

But realistically, unless you're really steady on the "trigger finger," you aren't going to be using only 3 grams. Also, 3 grams is a pretty light layering of shave cream. So, most people are probably closer to the 4 grams than 3 grams, and each squirt of the can will vary.

How Much Shave Cream is in Each Can?

This part was easy. And yes, it was wasteful. But now you don't have to repeat it to find out.

The answer is: about 7 ounces by weight (202 grams). A little more than what's advertised on the can.

The Math

So, we then divide 202 by 3 = 67, and 202 by 4 = 50.

And, therefore... You can expect to get 50 to 67 lathers out of one can of edge shaving gel. But wait! That's lathers, not shaves.

If you do two passes, cut that number in half to 25 or 34 shaves. And if you do 3 passes, you can only expect 16 to 22 shaves per can.


You're really only getting less than one month's worth of shaving cream per can if you shave every day.

Compare to our Rustic Shave Soap which will net you at the very least 4 months of 3 pass shaves or 130 lathers. And up to 6 months or 190 lathers. Sure, it's not as huge a savings as double edge blades, but the quality of the lather is leagues ahead of anything a can. And you're still saving money!

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5 Common Questions About Shaving Soap

Posted by Leighton Tyau on

1.  Should I rinse it out after using it?

It is not necessary to rinse out your soap after using it, but if you do, make sure you dry it out before putting the lid back on.

Keep in mind that the longer the soap is exposed to air, the more fragrance is evaporated away, so I recommend wiping out the excess lather from the container rather than rinsing it off.

2. Does it need to dry before I lid it?

Only if you rinse out the lather from the container. Contrary to popular belief, bacteria and mold can grow in watery soap! That is why a preservative is always found in shaving cream. Removing excess moisture will prevent nasties from growing on your soap.

So, why doesn’t bacteria grow on a bar of soap? Bar soap and most shaving soaps do not retain enough moisture to be able to grow bacteria. And if your bar soap gets all slimy, you just wash it down the drain. And then invest in a soap dish which will keep it dry.

3. Do they have a shelf life?

Yes, but the shelf life is usually measured in years. Unless an extremely volatile oil, such as rosehip, is used as a superfat. In which case, the soap can go rancid within months. Triple milled soaps can have a near indefinite shelf life. But all soaps will lose scent over time, so it’s a good idea to use up that soap! You can always use it as bath soap to use it up faster.

WSP soaps are formulated to be good for at least 2 years.

4. Do they need to be bloomed?

Blooming has two purposes: to release the fragrance with gentle heat (similar to an oil warmer); and to make it easier to load the soap. You bloom a soap by letting hot water sit on the top of a soap puck for a few minutes.

Whatever the reason, soaps don’t *need* to be bloomed. And unless it is a hard triple milled puck, it doesn’t make it any easier to lather. But blooming it for scent does help fill the room.

5. Why do you fill the soap to the brim?

A couple of reasons. One is to give you maximum value for your money. You're already paying for the container and the labor to fill it. Why not fill it all the way?

Okay, I do realize that some people want the head space and quite a few people ask why I don’t use a larger container and leave more headspace. Well, the reason is that it’s not feasible to do so given the existing formulas.

My shaving soap formula is not pourable. It has to be scooped into the container. It is the consistency of a barely mashed potato. Therefore, we scoop it into the container and level the top.
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Germs, Soap, Antibacterial Soap, & Used Shaving Gear

Posted by Leighton Tyau on

In this article I will discuss germs. How and why soap gets rid of those germs, whether antimicrobial soap is worthwhile, and whether or not germs can live on used shaving gear.

Antibacterial Soap - Does it Even Work?

Antimicrobial soap sounds like a great idea, but in recent times has come under fire. It’s supposed to kill off more microbes than regular soap, but does it do more harm than good? Maybe, but there are no definitive studies on the effects of antibacterial soap & bacterial resistance.

So, what the heck is it? In short, it’s just liquid soap (ok, actually synthetic detergent) laced with an antimicrobial agent (usually Triclosan).

It’s supposed to be more effective at killing off germs, but is it really? First off, antibacterial anything does absolutely nothing to viruses. (It's antibacterial, not antiviral.) Ok, but what about bacteria? According to the FDA, there is no evidence that antibacterial soap is any more effective at killing bacteria than regular soap.

How Soap Kills Those Germs

The possibly surprising answer is that it doesn’t. Only antibacterial soap kills bacteria (but not viruses). Soap just washes the germs down the drain. So why doesn’t that bar of soap start growing bacteria? Because it doesn't have enough water. Bacteria need water to thrive. No water, no bacteria. Same with most viruses, they can’t survive for longer than a few days outside of a controlled environment. In addition, soap is a pretty strong base. Approximately 9-10 on the pH scale.

But what about soft soaps, croaps and creams? Do they grow bacteria? Actually, unless a preservative is used, yes they can.

What about viruses? The good news is that most of the ones we should be concerned about die within hours of leaving the host body. Some are a little more resistant though. Most die after a week of exposure on a dry surface. A study published in 2010 in the AEM found that washing your hands with soap & water was the best method for removing the Norovirus, followed in efficacy by rinsing with just plain water. So, regular ol’ soap & water quite possibly the best way to get rid of those viruses short of submerging your hands in bleach or alcohol for a few minutes.

What's the Best Way to Wash Your Hands?

The best way to wash your hands is the most thorough method. The more crevices you get and time you spend, the cleaner your hands will be. As far as methods go, the WHO method is the best. See how to do it below.

Are Used Razors Safe?

First off, do not reuse a cartridge razor or the DE blade. The actual razor is not safe to share. Period. Don't do it. Unless you want to catch something nasty. A razor blade is so cheap and disposable and should not be shared.

But what about the actual razor? The good news is that metal is extremely inhospitable to life forms. A simple rinse with water will wash off most viruses according to the FDA, and the use of soap and water will wash off nearly 100% of all microbes.  But if you’re still concerned, sanitization after cleaning is an option. 5 minutes in a 90% alcohol solution or the use of Barbicide is what I recommend. Bleach also works, but might react with some finishes.

What About Used Brushes?

Just like everything else, washing the brush with soap & water will eliminate nearly all the microbes. Brushes present a slight problem for sanitization. The hairs cannot be exposed to harsh chemicals such as bleach or alcohol or even Barbicide because they might be damaged. The only sanitizing agent I personally know of to be safe would be a vinegar & water mixture. However, it’s not as effective as bleach or alcohol or Barbicide.

Now, all that said, you can also just let it sit around for 7 days or however many days necessary to kill off whatever virus you’re concerned about. But if you’re very concerned about such things, you’re better off not buying used.

What about soap? It depends. If the soap is a triple milled soap, it is extremely inhospitable to germs. Not only is there no water, but it’s a fairly basic solution. In addition, you can always scrape off or wash off the top layer of soap. As such, it’s pretty safe. If it’s a softer soap with no preservative, there is a small chance of bacterial presence.

In this author’s opinion though, metal is extremely inhospitable to anything other than the most hardy of spores, and soap & water should get rid of those. Plus, they can be soaked in alcohol/bleach/Barbicide, so buying a used DE razor is fairly safe. As for brushes, soap & water is pretty darned effective, but there is a miniscule chance of something remaining. But they’re still probably pretty safe. Regardless, purchase used shaving gear at your own risk.



Effectiveness of Liquid Soap and Hand Sanitizer against Norwalk Virus on Contaminated Hands by Pengbo Liu, Yvonne Yuen, Hui-Mien Hsiao, Lee-Ann Jaykus, and Christine Moe. January 2010, vol. 76, No. 2, p. 394-399. Applied and Environmental Microbiology.

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Five Steps to Make a Super Lather with WSP's Rustic Soap

Posted by Leighton Tyau on

So, I've had a few questions about my Instagram shave of the day photos. Specifically, how I get such thick and rich lather. Well, I'm going to show you in five easy steps.

1. Soak the brush

You'll want to soak it for at least a minute. You want the hairs to be saturated with water. I soak it for about two to five minutes; the time it takes to wash my face.

2. Let Excess Water Drip Off

In order to load a lot of lather into the brush, you need water to grab the soap particles. As such, you don't want to shake the brush dry, you just need to hold it over the sink and let all the major water drip out for a few seconds.

3. Load, load, load, and then load some more

Lather after 20 swirls

After 25 more swirls

4. Continue loading

You need to get that lather deep into the knot. You don't want to completely mash the hairs, but you need to get the soap into the center of the knot.

Lather after 100 more swirls

5. Take your photo

Arrange the brush, soap, & anything else you want to include in your shave of the day photo and take your photo!

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