How to Make Leather

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Leather is a material made from the skin of an animal using tanning or other similar processes. Leather is not susceptible to bacteria and decay because of the altering of the protein structure in the skin. The process of making leather dates back to ancient civilizations and has evolved into a streamlined process.

Part 1
Part 1 of 3:

Prepping the Hide

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  1. Skin the animal by setting it on it's back, on an incline when possible. Use a good hunting knife for skinning, and a gut hook knife to gut the animal.
    • Begin by removing the sex organs.
    • Slice the animal from the tail to the throat.
    • Peel back the skin with your fingers or a knife.
    • Split the sternum, spread the rib cage and remove the organs.
    • Flip the animal over and finish removing the hide.
  2. Manufacturers use a mechanical fleshing machine to remove the flesh from the inside of the skin. Running the inside of the skin over the steel roller of the machine will eliminate any excess flesh. If you don't have access to a fleshing machine, you can purchase fleshing tools from a hunting store or taxidermy supply store.
    • Drape the flesh over a large horizontal beam. Stand at the end of the beam and pin a small section of the hide to the end of the beam using your body weight. If you don't have a beam to use or don't want to construct one, you can simply spread the hide out on a tarp on the ground. [1]
    • Place a large basin or bucket below your work area to catch the excess tissue and fats as they are scraped away.
    • Scrap away all the subcutaneous materials with your fleshing tools. Remove the veins and membrane.
    • Rotate the hide and work until the surface is complete. Do not leave the hide if you need to take a break as the material can dry out. After the hide has been fleshed, the end result should be a white, smooth surface.
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  3. Apply a generous layer of salt to the skin, or create a brine and soak the skin. This will act as a preservative to keep the hide from decomposing. Fresh skins need to be salted or frozen within the first few hours, otherwise they may be destroyed. [2] Fold the hide in half so the flesh sides are together. Leave for 24 hours. Scrape away any remaining salt and repeat. [3]
    • To create a brine, add one pound (.45kg) of salt per one gallon (3.8L) of water to create a solution. [4] Let the hide soak for 24 hours.
  4. Soaking will help remove any dirt or other materials from the skin. Fill a large 35 gallon (132L) or so container with fresh, cool water. Place the hide in the water for at least a day. The longer you let the hide soak, the easier it may make the hair removal process.
  5. This can be done chemically with a solution of calcium oxide (also known as slaked lime, whitewash, or calcium hydroxide) bath. You can also use the same tools for dehairing that were used for fleshing. Remove all the hair and the epidermis, then hang the skin to dry.
  6. Add one teaspoon (5mL) of calcium hydroxide per gallon (3.8L) of water to create limewater. This bath is known as bating and will remove any inter-fiber substances and unnecessary proteins. It will also help to soften the skin and loosen any remaining hairs. Remove the skin from the lime bath and rinse it thoroughly until clean.
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Part 2
Part 2 of 3:

Tanning The Leather

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  1. This can be a one to four day process, depending on which method you choose.
    • Perform a vegetable tannage. A vegetable tannage uses tannin extract, which occurs naturally in a variety of different tree barks like oak, chestnut, tanoak or hemlock. The tannin extract is mixed with water and placed in a rotating drum along with the animal skin. The rotation of the drum will evenly distribute the extract over the skin. This process takes about three to four days and produces a leather that is flexible and used for furniture or luggage.
    • Perform a mineral tannage. Mineral tannage uses a chemical called chromium sulphate. The chromium sulphate has to sufficiently soak into the animal skin to achieve proper tannage. This process takes around 24 hours to complete and produces a leather that is stretchable and used for garments and handbags.
    • Tan a hide with brains. Brain tanning is a popular home method for tanning hides. [5] They say each animal has enough brains to tan it's own hide. So if you have the brain of the animal use that, or you can buy a brain from your local butcher. Combine with a pint (473mL) of water and blend it until it is smooth. Use a large pot to boil the mixture. Add the boiled brains to a large bucket or drum and add some water to cool it. Keep the water at a four-one ratio to the brain. Add the hide and massage the mixture into the skin thoroughly. Leave at room temperature for up to 24 hours.
  2. You will need a large container to hold all your hides and the tanning agent. Look for a container around 35-40 gallons (132-150L).
  3. The tannin which you select will displace the water and replace it will collagens from the chemicals or substances. You will need to let the leather soak from several hours to 6 days depending on which tanning method you select and the size and quantity of the hides.
  4. Dyes are what can be used to give the leather a color other than the natural look. If you are going to dye all of your leather the same color, you can add the dye during the tanning process, or you can wait until after the tanning process.
  5. The leather will need a thorough rinse after tanning. This will ensure any chemicals and dyes are removed. Use warm water and some mild soaps that contain natural ingredients.
  6. After the skins have gone through the tannage process, they can be considered leather. Hang the leather out to dry. Hang the leather over rods in a cool, semi-moist area. You can use a fan to help speed up the drying process, but leather should dry slowly so be patient.
    • If the leather is not drying evenly, use some damp rags to remoisten the areas that are drying faster.
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Part 3
Part 3 of 3:

Finishing the Leather

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  1. A machine called a staker can soften the leather by stretching it and lubricating it with natural oils. This process ensures the leather stays pliable.
    • You can also hang the hide up from your ceiling and stretch the hide as much as you can in all different directions. You can use ropes and hooks to keep the hide taut.
  2. Once a hide is about 80% dry, apply the oil to the surface on the skin side. [6] Coat the entire surface evenly. Repeat several times through the drying process.
  3. The hide is soft and pliable, but depending on your purpose you may want to smoke the hide to force the tannin into the fibers. Stitch the hide to form a bag and suspend the opening above a small smoky fire for several hours.
    • Different kinds of wood can even add a natural color to your leather. Aspen or cottonwood can create a golden leather. [7] Try different woods available in your area to see what different colors and looks you can create.
  4. The leather can be buffed or polished. You might choose to treat the leather with a coat of acrylic or polyurethane to make patent leather. [8] You can also emboss leather to create permanent shapes or designs in the fabric if desired. Finally, cut the leather based on the end user's specifications.
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Expert Q&A

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  • Question
    What animal skin should I use?
    Mike Stramiello
    Leatherworker
    Mike Stramiello is a Leatherworker based in Wilmington, North Carolina. He founded Beast Belts and Knives, a Leather Products business in 2020. He initially got involved in the field when he started blacksmithing knives. He couldn’t find the kinds of leather sheaths he wanted for his knives in his area, so he started leather smithing. After years of honing his craft, he started selling his custom-made wares and consistently has a wait list for his products. In addition to the items that are regularly available on his website, Mike builds one-off creations for his website and holds product auctions on his Instagram page. Beast Belts and Knives custom belts, rugs, bags, weapon sheaths and holsters, and other special order items. Mike takes pride in his handmade luxury custom leather work and bladesmithing creations.
    Mike Stramiello
    Leatherworker
    Expert Answer
    The type of animal leather you choose will depend on your project and desired outcome. Cowhide, the most popular option, is durable and versatile, which makes it ideal for furniture, clothing, and bags. For smaller items like wallets or journals, goat leather is softer and more flexible. And calfskin is thinner and more delicate and is often used for gloves or shoes. Lastly, Kangaroo leather is lightweight but very durable and is perfect for sports gear and fine accessories. So you really have to think about what you’re making first before deciding on the type of leather to use.
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  • Question
    Why do people use brains for tanning? People might not like it.
    Community Answer
    The brain contains oil called lecithin that serves as a natural tanning agent to lubricate the skin. Native Americans first practiced this method of brain tanning and continue to tan hides with it today. Ironically, deer have just enough oil, or lecithin, in their brains to adequately tan their own hides.
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  • Question
    Can I color the leather?
    Community Answer
    Yes. Dyes can be used to give the leather color. If you are going to dye all of your leather the same color, you can add the dye during the tanning process. Smoking with different kinds of woods adds a natural color to your leather. Aspen or cottonwood can create a golden color.
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      Warnings

      • When using a fleshing machine, pay close attention to how close your fingers get to the rotating wheel. Your fingers can get caught in the wheel, causing a crushing/cutting injury.
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      Things You'll Need

      • Animal skin
      • Mask
      • Water
      • Fleshing machine
      • Rotating drum
      • Tannin extract or chromium sulphate
      • Staker
      • Natural oils
      • Fan

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      Expert Interview

      Thanks for reading our article! If you’d like to learn more about leatherworking, check out our in-depth interview with Mike Stramiello .

      References

      1. ↑ http://www.braintanbuckskin.com/Tanning_Spirit/Fleshing.htm
      2. ↑ http://www.motherearthnews.com/homesteading-and-livestock/how-to-tan-a-hide-zm0z01on.aspx#axzz2Oa1yp4Gk
      3. ↑ http://www.fieldandstream.com/articles/hunting/2012/10/diy-bathtub-tannery-tan-hide-start-finish
      4. ↑ http://www.fieldandstream.com/articles/hunting/2012/10/diy-bathtub-tannery-tan-hide-start-finish
      5. ↑ http://www.braintan.com/intro/intro.html
      6. ↑ http://www.vandykestaxidermy.com/Typical-Scenario-for-Tanning-a-Hide-W52.aspx
      7. ↑ http://www.braintanbuckskin.com/Tanning_Spirit/Smoking.htm ?
      8. ↑ http://www.madehow.com/Volume-6/Patent-Leather.html

      About This Article

      Article Summary X

      If you want to make leather, apply a generous layer of salt to the animal hide, fold it in half, and leave it for 24 hours. Scrape away any remaining salt and repeat the process for another 24 hours. Next, soak the skin in cool, clean water for an additional day. Remove all of the hair from the skin, either with calcium oxide or skinning tools, then soak the skin a final time in limewater. Rinse the skin, then place it into a drum with a tanning agent for 1-4 days, depending on the method you use. Rinse the skin again, then hang the leather outside to dry. If you want to learn how to smoke and apply a finish to your leather, keep reading the article!

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