Improvised Autoclave, How to Make One to Sterilize Your Medical Equip.

improvised autoclave

When you are prepping, there may come a time when you need to sterilize medical equipment or tools.

You can do this by using an autoclave, but what if you don’t have one? Or what if you need a larger autoclave than what is available to you? In this blog post, we will show you how to make your own DIY autoclave using a pressure cooker or an Instantpot cooker!

We will also show you how to make a larger autoclave for special sterilization needs. Finally, we will give you some tips on how to use your DIY autoclave safely and effectively.

What is an Autoclave?

An autoclave is a pressure vessel that uses steam to sterilize equipment and supplies. Autoclaves are used in many industries, but they are most commonly found in hospitals and dental offices.

Autoclaves use a huge amount of high atmospheric pressure and temperature to kill bacteria, viruses, and other microorganisms for complete sterilization.

Why a Prepper May Need to Use an Autoclave

There are many reasons why a prepper may need to use an autoclave. If you are a medical professional, you may need to sterilize your equipment. If you are a homesteader, you may need to sterilize your canning jars.

Or, if you are in an SHTF scenario, you may need to sterilize your water or food. Whatever the reason, an autoclave can be a valuable tool for a prepper.

Types of Homemade Autoclaves

There are three types of DIY autoclaves that you can make at home: pressure cookers, Instantpot cookers, and DIY large autoclaves.

Pressure Cookers

Pressure cookers are a type of pressure pot that can use steam to sterilize equipment. Pressure cookers are safe and easy to use. They are also relatively inexpensive. You can find pressure cookers at most department stores or online.

Instantpot Cookers

Instantpot cookers are another type of pressure vessel autoclave that uses steam to sterilize equipment. Instantpot cookers are safe and easy to use. They are also relatively inexpensive.

Rather than using a stove, Instantpot and Instantpot-type pressure cookers are electrical appliances and have their own programmed settings. You can find pressure-pot cookers like Instantpot at most department stores or online.

DIY Large Autoclaves

DIY large autoclaves are autoclaves that you can make yourself. They are usually made out of pressure cookers or other large containers. DIY large autoclaves are great for sterilizing larger items, such as water tanks or food storage containers.

How to Make and Use Your Own Autoclave with a Pressure Cooker or an Instantpot Cooker

Making your own DIY autoclave is easy and only requires a few supplies. All you need is a pressure cooker or an Instantpot cooker or pressure pot, water, and a way to seal the lid.

To make your DIY autoclave, simply add water to your pressure cooker or Instantpot cooker. How much water depends on the size of your pressure vessel, but enough water to boil and not run dry by the end of the cycle.

Then, add a metal basket that sits above the water. A wire mesh basket with feet or a canning rack works well. Add the items you need to sterilize.

Seal the lid, and turn on the machine or turn on your stove. Be sure the pressure release valve is in the closed position.

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The pressure cooker or Instantpot cooker will do the rest! The amount of time it takes to sterilize your equipment will depend on the type of pressure cooker or Instantpot cooker you are using, but you generally want 15 PSI and 250 degrees Fahrenheit for 30 minutes.

Once the cycle is complete, be sure to turn the pressure release valve open and let the release valve indicator drop fully before opening the pressure cooker or Instantpot.

How to Make and Use a Larger Autoclave for Special Sterilization

If you need to sterilize larger items, such as water tanks or food storage containers, you will need to make a DIY large autoclave. To make a DIY large autoclave, you will need a large metal tank in a tube shape.

Some people have used a new, empty propane tank and cut it to the size they need. Others have used stainless steel drums.

You will also need a way to seal the tank to create a vacuum inside. A lid that fits snugly with a rubber seal or o-ring can work well. You will need to install a pressure gauge that will measure the temperature and pressure of the steam.

You will also need to install a pressure release valve of some type. Finally, you will need a way to heat the water. A propane burner or a wood stove are both good options.

To use your DIY large autoclave, simply add water to the tank. Then, add the items you need to sterilize. Seal the lid, and turn on the heat source.

The amount of time it takes to sterilize your equipment will depend on the size of your autoclave and the heat source, but you generally want 15 PSI and 250 degrees Fahrenheit for 30 minutes.

Using your Autoclave: Things to Remember

Now that you have your DIY autoclave, how do you use it? There are two main things to remember when using your autoclave: how long to sterilize and what precautions to take.

How Long to Sterilize?

The amount of time it takes to sterilize your equipment will depend on the type of autoclave you are using, but you generally want 15 psi and 250 degrees F for 30 minutes.

Cautions Needed When Using Your Autoclave

When using your DIY autoclave, there are a few precautions you need to take. First, make sure the area around your autoclave is well ventilated. Second, wear gloves and protective clothing. Third, before starting the autoclave, be sure the pressure valve is closed.

Fourth, before opening the autoclave, don’t forget to turn the pressure release valve open to release the steam and built-up pressure. Finally, be very careful when opening the autoclave. The steam can be hot and can cause burns.

Now that you know how to make and use a DIY autoclave, you can sterilize your equipment at home! Be sure to follow the instructions carefully and always take precautions when using your autoclave. DIY autoclaves are a great way to save money and sterilize your equipment at home. Thanks for reading!

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1 thought on “Improvised Autoclave, How to Make One to Sterilize Your Medical Equip.”

  1. I have to begin by saying “Thank you” for bringing up a Prep item I have long thought was grossly ignored by folks doing articles on medical supplies for Preparedness and general survival.

    I am a BIG on DIY and Self Sustaining skills and life style, I have, love and use All American canners.

    However, why would I take one of my busy AA’s out of use as a Canner when All American makes both NON-electric as well as electric Autoclaves/sterilizers?

    I got my first AA-Autoclave years ago and now have 2 the largest (surgical drapes, bandages, sick room materals….) and the smallest (surgical packs….). Whether you only use them for Vet supplies or for human care having a dedicated piece of equipment is the only way to go in health care.

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