You can pressure can celery to preserve it safely for months.
The process uses a pressure canner to reach temperatures that destroy harmful bacteria.
Celery is a low-acid vegetable, so it must be pressure canned rather than water-bath canned.
If you’ve been wondering how to pressure can celery without turning it into mush, you’re in the right place.
In this post, we’ll walk through why pressure canning celery works, how to do it step by step, and the mistakes to avoid.
Let’s dive in.
Why Pressure Canning Celery Is Necessary
Pressure canning celery is necessary because celery is a low-acid food.
Low-acid vegetables need the high heat that only a pressure canner can provide.
Here’s why that matters.
1. Celery Has a High pH
Celery has a pH above 4.6, which puts it in the low-acid category.
That means boiling water alone won’t kill dangerous spores like Clostridium botulinum.
When you pressure can celery, the canner reaches 240°F (116°C) to eliminate those risks.
2. Boiling Water Isn’t Enough
Water bath canning only reaches 212°F (100°C).
That’s fine for pickles and jams, but it’s not enough for celery.
To safely pressure can celery, you need the extra 28 degrees that a pressure canner delivers.
3. Botulism Spores Survive Normal Heat
Botulism spores can survive boiling temperatures.
They thrive in the oxygen-free environment of a sealed jar.
That’s exactly why you must pressure can celery instead of using a water bath.
How to Pressure Can Celery Step by Step
Learning how to pressure can celery is straightforward once you know the steps.
Here’s the process from start to finish.
1. Gather Your Equipment
You’ll need a pressure canner, mason jars, lids, and bands.
Also grab a jar lifter, a bubble remover, and clean towels.
Make sure your pressure canner has a working gauge or weighted regulator.
2. Prep the Celery
Wash the celery thoroughly under running water.
Trim the leaves and cut the stalks into pieces that fit your jars.
You can leave them in chunks or dice them smaller if you prefer.
3. Blanch the Celery
Blanching helps celery hold its color and texture.
Drop the pieces into boiling water for about 3 minutes, then plunge them into ice water.
This step isn’t strictly required, but it improves the final result when you pressure can celery.
4. Pack the Jars
Pack the blanched celery into hot, sterilized jars.
Leave about 1 inch of headspace at the top.
Add ½ teaspoon of salt per pint or 1 teaspoon per quart if you want.
Then fill the jars with boiling water, keeping that 1-inch headspace.
5. Remove Air Bubbles
Slide a bubble remover or plastic spatula around the inside of each jar.
This releases trapped air pockets.
Wipe the rims clean, then place the lids and bands on fingertip-tight.
6. Load the Pressure Canner
Put 2 to 3 inches of water in the bottom of the canner.
Place the jars on the rack so they don’t touch the bottom.
Lock the lid and turn the heat to high.
7. Vent and Pressurize
Let steam escape for a full 10 minutes before adding the regulator.
This step is critical when you pressure can celery because trapped air skews the processing time.
Once the steam vents steadily, add the weighted gauge or watch the dial.
8. Process at the Right Pressure
For dial-gauge canners, use 11 PSI for altitudes under 2,000 feet.
For weighted gauges, use 10 PSI at the same altitude.
Adjust upward for higher elevations.
Process pints for 30 minutes and quarts for 35 minutes.
9. Cool and Store
Turn off the heat and let the canner depressurize naturally.
Wait 10 minutes, then open the lid and remove the jars.
Let them cool for 12 to 24 hours before checking the seals.
Common Mistakes to Avoid When You Pressure Can Celery
Even seasoned canners slip up when they pressure can celery.
Here are the mistakes to watch for.
1. Skipping the Venting Step
If you don’t vent the canner for 10 minutes, the jars won’t reach the right temperature.
That means your celery could spoil or become unsafe.
2. Using the Wrong Pressure
Too little pressure leaves spores alive.
Too much pressure can crack jars or overcook the celery.
Always check your altitude before you pressure can celery.
3. Overpacking the Jars
Crowding celery too tightly prevents proper heat penetration.
Leave that inch of headspace and don’t cram the pieces down.
4. Forgetting to Adjust for Altitude
Higher altitudes need higher pressure.
Above 2,000 feet, increase PSI by 5 for every 2,000 feet of elevation.
Your canner manual will have the exact chart, so check it before you pressure can celery.
5. Reusing Old Lids
Lids are single-use for a reason.
The sealing compound won’t stick properly the second time.
Always grab fresh lids when you pressure can celery.
So, How Do You Pressure Can Celery?
You pressure can celery by packing blanched stalks into jars, covering them with boiling water, and processing them in a pressure canner at 10 or 11 PSI.
Because celery is a low-acid vegetable, it requires the high heat that only a pressure canner delivers.
Follow the steps above, avoid the common mistakes, and you’ll have shelf-stable celery ready for soups, stews, and casseroles all year.
So grab your canner and give it a try.