Your Cool Home is supported by its readers. Please assume all links are affiliate links. If you purchase something from one of our links, we make a small commission from Amazon. Thank you!
You can can green beans and potatoes together, and it’s a delicious way to preserve a hearty side dish for your pantry.
When you can green beans and potatoes together, you’re essentially pressure canning a combination that’s ready to heat and serve straight from the jar.
This method works beautifully because both vegetables have similar processing times under pressure, making them safe and practical to combine.
In this post, we’ll cover exactly how to can green beans and potatoes together, the safety rules you must follow, and tips for perfect results every time.
Let’s dig into this flavorful preservation project.
Why You Can Can Green Beans And Potatoes Together
The short answer is yes, you can can green beans and potatoes together, but only using a pressure canner, never a water bath.
Green beans are a low-acid vegetable, and potatoes are also low-acid, which means they require high temperatures to kill bacteria like botulism.
A pressure canner reaches 240°F or higher, which is essential when you can green beans and potatoes together safely.
The beauty of combining them is that you save time and energy, since both veggies process at the same pressure and time.
Plus, you end up with a convenient one-jar meal that pairs perfectly with ham, sausage, or a simple grilled protein.
1. The Science Behind Pressure Canning Both
When you can green beans and potatoes together, you’re relying on the fact that both are low-acid foods with a pH above 4.6.
Low-acid foods must be processed in a pressure canner to destroy Clostridium botulinum spores that cause botulism.
Potatoes are dense and take longer to heat through, but when cut into uniform chunks, they cook evenly alongside green beans.
The USDA approved canning green beans and potatoes together in a tested recipe, so you can trust the combination.
Just remember that altitude adjustments are critical, so check your pressure canner manual for your elevation.
2. Texture Considerations When Canning Together
You can can green beans and potatoes together, but you need to expect some texture changes after processing.
Potatoes will soften significantly, so they’re best used as a stew-like side dish rather than for frying later.
Green beans also soften, but they hold their shape nicely when packed properly with enough liquid.
Choose waxy potato varieties like red or Yukon gold, as they hold up better than starchy russets.
Starchy potatoes can turn mushy and cloudy the canning liquid, which isn’t as appealing.
3. What You’ll Need Before You Start
Before you can green beans and potatoes together, gather your pressure canner, jars, lids, and rings.
You’ll also need fresh green beans, potatoes, canning salt, and boiling water for the liquid.
Wash and snap your green beans into 1- to 2-inch pieces, then peel and dice your potatoes into 1-inch cubes.
Having everything prepped and ready makes the process smooth and enjoyable.
Don’t skip the step of heating your jars; warm jars prevent cracking when you add hot contents.
The Step-By-Step Process To Can Green Beans And Potatoes Together
Now that you know you can can green beans and potatoes together, let’s walk through the tested process step by step.
This recipe follows USDA guidelines for a mixed vegetable pack, and it’s designed for a dial-gauge or weighted-gauge pressure canner.
Always start with clean equipment and fresh, high-quality produce for the best safety and flavor.
Here’s how to get it done right the first time.
1. Prep Your Produce and Jars
Wash your green beans thoroughly, trim the ends, and snap them into bite-sized pieces.
Peel your potatoes and cut them into uniform 1-inch cubes so they cook evenly with the beans.
Wash your pint or quart jars in hot soapy water and keep them hot until you’re ready to fill.
Combine your green beans and potatoes in a large bowl, aiming for roughly equal parts by volume.
A good ratio is about 2 cups of beans to 2 cups of potatoes per quart jar.
2. Pack the Jars With Veggies and Salt
When you can green beans and potatoes together, packing technique matters for safety and quality.
Fill each hot jar with the mixed vegetables, leaving 1 inch of headspace at the top.
Don’t cram them too tightly because the vegetables need room to expand during processing.
Add 1/2 teaspoon of canning salt to pints or 1 teaspoon to quarts for flavor, though this is optional.
Salt doesn’t affect safety, so feel free to skip it if you’re watching your sodium intake.
3. Add Boiling Liquid and Remove Air Bubbles
Pour boiling water over the vegetables, keeping that 1-inch headspace.
Use a plastic spatula or bubble remover tool to gently release trapped air bubbles from the jar.
Air bubbles can prevent proper heat penetration, which is dangerous when you can green beans and potatoes together.
Wipe the jar rims with a clean, damp cloth to remove any food residue that could break the seal.
Place the lids on and screw the bands fingertip-tight, meaning snug but not too tight.
4. Process in a Pressure Canner
Place your jars in the pressure canner with 2 to 3 inches of hot water in the bottom.
Lock the lid and heat until steam escapes steadily from the vent for 10 minutes to exhaust air.
Then close the vent and bring the canner up to pressure, either 10 PSI for a weighted gauge or 11 PSI for a dial gauge at sea level.
Process pints for 75 minutes and quarts for 90 minutes, adjusting time for altitude as needed.
When the timer goes off, turn off the heat and let the canner depressurize naturally; never rush this step.
5. Cool, Check Seals, and Store
Once pressure returns to zero, wait 10 minutes, then carefully remove the canner lid.
Lift the jars out with a jar lifter and place them on a towel-lined counter, leaving space between them.
Let the jars cool completely for 12 to 24 hours, then test the seals by pressing the center of each lid.
If the lid doesn’t flex and makes a popping sound, the seal is good, and you can store your jars.
Label each jar with the date, and store them in a cool, dark place for up to 12 months.
Important Safety Tips When You Can Green Beans And Potatoes Together
Even though you can can green beans and potatoes together, you must never alter the recipe ratios or processing times.
Adding extra potatoes, butter, flour, or meat changes density and pH, which can compromise safety.
Stick to the tested proportions of roughly half beans and half potatoes by volume.
Also, never use a water bath canner for this recipe because it won’t reach high enough temperatures.
Botulism is a real risk with low-acid foods, so pressure canning is non-negotiable here.
Another crucial tip is to always use fresh, not canned or previously cooked, vegetables.
Raw veggies have the right density for heat penetration when you can green beans and potatoes together.
Pre-cooked or frozen vegetables can become overly soft and may not process safely.
And always check your pressure canner’s gauge for accuracy each season before you start.
A faulty gauge can lead to under-processing, so it’s better to be safe than sorry.
So, Can You Can Green Beans And Potatoes Together?
Yes, you can can green beans and potatoes together, and it’s a smart way to stock your pantry with a tasty, ready-made side dish.
The key is to use a pressure canner and follow the tested times and ratios we’ve covered here.
When done correctly, you’ll have tender green beans and soft potatoes that reheat beautifully in minutes.
Just remember to adjust for altitude, never rush depressurization, and always check your seals.
So go ahead, grab your fresh produce, fire up that pressure canner, and enjoy the satisfaction of canning green beans and potatoes together at home.