How To Dry Can Potatoes (+ What NOT To Do!)

Learning how to dry can potatoes can help you prevent waste, and ensure that you have delicious potatoes long after your harvest is over. Properly canning your dry potatoes is essential to ensuring that your potatoes do not go bad. 

Don’t have time to read the entire guide? Here’s a quick guideline to tell you what you need to know to dry can potatoes. 

First, wash and peel the potatoes. Cut them to fit inside of your canning jars. Put ½ teaspoon of salt and one teaspoon of butter into the bottom of your wide-mouthed jars. Put the potatoes in the jar until it is full. Process them as usual.

Want to know the full process to dry can potatoes? Keep reading to learn more. 

Dry Canning Potatoes

Illustration of potatoes and cans for dry canning potatoes

Dry canning potatoes often use rebel canning methods to can potatoes without water. Rebel canning methods are methods that are not traditionally used during the canning process. To do this, you do not boil potatoes. Instead, wash and peel them. Then, put your ingredients in your canning jar, and can them as you normally would.

Usually you would expect to fully submerge your canning jars in water for canning them. But this method allows you to do it dry, though there are some risks.

To expand on this, you need to begin the canning process by preparing your potatoes. To do this, wash them with warm water. This removes dirt and residue on the potato.

Also Read:  Do Jars Have To Be Fully Submerged When Canning?

Then, you need to peel them. Peel the potatoes the same as you would if you were making mashed potatoes. There is nothing extra you need to do during this step. 

Next, you need to make sure that the potatoes fit inside of your canning jars. It’s best to pick wide-mouthed canning jars when canning potatoes because they are easier to use.

You can cut your potatoes in strips or halves if necessary. If you own a french fry cutter, this is ideal for this part of the process. 

After that, you want to put the ingredients necessary in the jar. Although you are not filling up the jar with water, you still have to put something in the jar to help preserve the potatoes.

It’s popular to use the salt and butter method. Just add ½ teaspoon of salt and one teaspoon of butter into the bottom of the jar before adding the potatoes. If you are not comfortable with this or do not have salt on hand, there are other options. You can also use oxygen absorbers. 

Once your jars are filled with your ingredients and potatoes, wipe them with a clean cloth. Then, use them in a pressurized canner as you normally would. 

Is Dry Canning Unsafe For Potatoes?

Several people claim this method is unsafe and can result in people getting deathly ill. The primary reason that people claim this method is unsafe is due to the fact that there is no liquid involved, so potatoes are less likely to reach the desired temperature to kill harmful bacteria.

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Normally, heat would get trapped in the liquid. Then, it would warm the liquid, which would then slowly warm evenly. This prevents certain bacteria.

It’s a necessary part of the canning process to prevent bacteria from growing. When the contents inside the jar do not get hot enough, harmful bacteria can grow. 

Individuals claim that because there is no liquid in the jar, people are more likely to get botulism. However, as long as a high temperature is still reached, this is unlikely. It is possible to safely can your potatoes without liquid. 

What Is Botulism?

Illustrations of botulism spores

Botulism can be caused by improperly canning your fruits, vegetables, meats, etc. This type of food poisoning can be caused by other things, but we’ll focus on it being caused by canning for now. 

Clostridium botulinum spores can be found on most fresh foods, including the ones that are grown in your garden. They are usually harmless. However, under certain conditions, they are going to multiple before dying. During this process, they produce a toxin that can cause botulism. 

Botulism is a high concern because there are no signs that it exists. You won’t see bulging lids or notice a funny taste. Instead, you’ll have no idea that it exists until you find yourself ill. Botulism can be deadly. 

You can stop this process by making sure that your potatoes are under high heat during the canning process. They need to reach a temperature of at least 240 degrees Fahrenheit. This effectively prevents Botulism. (Hence the concern regarding the temperature inside the jars.)

How Long Do Dry Canned Potatoes Last?

Illustration of how long potatoes last when being dry canned

When stored properly, you can enjoy your potatoes for a year or longer. There is a general guideline that home-canned goods have the best quality for one year after they are canned. This doesn’t mean that they are bad after one year, but the quality lessens.

Also Read:  How To Do Water Bath Canning Without A Rack (3 Methods!)

How To Store Dry Canned Potatoes

Proper storage will guarantee that your potatoes last longer. Make sure that you follow lighting requirements, have the proper temperature, and keep an eye on humidity. 

No Natural Light

Keep canned potatoes away from natural sunlight

Potatoes should be stored in a cool, dry place. Consider an area that does not receive a lot of natural light, such as a basement. If your basement is not an option, consider a closet or pantry with a door that closes. 

Avoid Warm Areas

Keep canned potatoes away from warm heat

It’s important that you don’t store dry canned potatoes with the rest of your food in the kitchen.

The main areas of your house tend to be warmer than dark areas without a heater vent, which can make your canned goods go bad sooner than you expected.

Dry canned potatoes should be stored in a room or area that has a temperature of 50-70 degrees Fahrenheit. 

Less Humidity Is Better

Moisture is another thing that you want to avoid. Too much moisture can make your potatoes go bad quicker. If you store canned goods in an environment with moisture because you don’t have another option, pick up a dehumidifier. 

Dry canning potatoes is a great way to preserve potatoes for months without them becoming oggy due to the water in the jar. Make sure that the proper temperature is reached during the canning process to avoid illness, and always follow proper storage recommendations.