How to Can Tomato Juice in a Pressure Canner: A Step-by-Step Guide

Tomato juice is a versatile kitchen staple that captures the essence of summer in every sip. Whether you use it for soups, stews, or refreshing drinks, having homemade canned tomato juice on hand is a game-changer. If you’re ready to preserve your garden’s bounty, learning how to can tomato juice in a pressure canner is the perfect way to lock in freshness and flavor for months to come. Let’s dive into this easy-to-follow guide!

Why Use a Pressure Canner?

While tomato juice can also be canned using a water bath method, a pressure canner provides an extra layer of safety by reaching higher temperatures. This ensures the elimination of harmful microorganisms, making your tomato juice shelf-stable and safe for long-term storage.

What You’ll Need

Before you start, gather the following supplies and ingredients:

Equipment:

Pressure Canner: Essential for safe processing.

Canning Jars: Quart or pint jars work best.

Lids and Rings: Ensure they are new or in good condition.

Jar Lifter: For safely handling hot jars.

Canning Funnel: Helps pour juice without spills.

Bubble Remover: Removes trapped air bubbles.

Ingredients:

Fresh Tomatoes: About 3 ¼ pounds per quart jar (Roma, San Marzano, or other meaty varieties are ideal).

Bottled Lemon Juice: 2 tablespoons per quart jar (or 1 tablespoon per pint).

Canning Salt (Optional): 1 teaspoon per quart jar for flavor.

Preparing Your Tomato Juice

  1. Select and Wash Tomatoes

Choose ripe, firm tomatoes. Wash them thoroughly under cold water to remove dirt and debris.

  1. Peel and Core Tomatoes

To easily remove skins, blanch tomatoes in boiling water for 30-60 seconds, then transfer them to an ice bath. Once cooled, peel off the skins and remove the cores.

  1. Juice the Tomatoes

Cut peeled tomatoes into quarters and cook them in a large pot over medium heat until softened (about 10 minutes). Use a food mill or sieve to remove seeds and create smooth juice.

  1. Reheat the Juice

Bring the juice back to a gentle boil to ensure it’s hot when poured into jars.

Step-by-Step Pressure Canning Instructions

  1. Prepare Your Jars and Canner

– Wash jars, lids, and rings with hot soapy water. Rinse well.

– Preheat jars by placing them in simmering water until ready to use.

– Add 2 inches of water to your pressure canner and begin heating it on low.

  1. Fill the Jars

– Add 2 tablespoons of bottled lemon juice (or ½ teaspoon citric acid) to each quart jar for proper acidity.

– If desired, add 1 teaspoon of canning salt per quart jar.

– Carefully ladle hot tomato juice into jars using a funnel, leaving ½ inch of headspace at the top.

  1. Remove Air Bubbles

Use a bubble remover or non-metallic utensil to release trapped air bubbles from the jar. Adjust headspace if necessary.

  1. Seal the Jars

Wipe jar rims with a clean damp cloth to ensure a proper seal. Place lids on jars and screw rings on until fingertip-tight.

  1. Load the Canner

Place jars into the pressure canner using a jar lifter. Ensure they are not touching each other or the sides of the canner.

  1. Vent the Canner

Lock the lid on your pressure canner but leave the vent open. Heat on high until steam flows steadily from the vent pipe. Allow it to vent for 10 minutes before placing the weight on.

  1. Build Pressure and Process Jars

– Adjust heat to maintain proper pressure based on your altitude:

– For dial-gauge canners: Process at 11 PSI for 15 minutes.

– For weighted-gauge canners: Process at 10 PSI for 15 minutes (adjust PSI if above 1,000 feet elevation).

– Monitor pressure closely during processing time.

  1. Cool Down Safely

Once processing is complete, turn off heat and allow the canner to cool naturally until it reaches zero pressure. Do not rush this step! Remove the weight carefully and wait an additional 10 minutes before opening the lid.

  1. Remove Jars

Using a jar lifter, carefully transfer jars onto a towel-lined surface. Avoid placing them directly on cold countertops as this may cause cracking.

  1. Check Seals

After cooling for 12-24 hours, check that lids have sealed properly by pressing down on their centers—there should be no movement or popping sound.

Storage Tips

Store sealed jars in a cool, dark place for up to one year. Label each jar with its contents and date for easy tracking. If any jars fail to seal, refrigerate them and use within a week.

Canning tomato juice in a pressure canner may seem intimidating at first, but with these simple steps, you’ll soon master this rewarding skill! Not only will you enjoy delicious homemade tomato juice year-round, but you’ll also take pride in preserving your harvest like a pro!