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Ready Survival Kits

Off-grid living · US

Running a household canning operation

Put up a year of food safely: tested processes, storage and rotation, and what the law says before you sell any of it.

By The Ready TeamExpert review: pendingSources checked 29 October 2026

Quick card · Running a household canning operationSources checked 29 Oct 2026

Before

  • Use only tested processes for every jar size. Half-pint and pint jars share processing times, as do 1½-pint and quart jars. 1
  • Low-acid foods (meat, poultry, seafood and vegetables) must be pressure canned. 2

During

  • Use the time and pressure for your elevation, and let the canner cool to zero pressure on its own. 1
  • Date every jar. 3

After

  • Store jars at 40 to 70°F in a cool, dry, dark place, never above 90°F. 3
  • Most canned food keeps its best quality for up to a year. Use the oldest jars first. 3
  • Selling canned food is regulated. Some state cottage food laws, such as Illinois's, ban low-acid canned foods. 4 5

What to have

  • A second pressure canner to double output 2
  • Shelving in a cool, dark room 3

Think in seasons, not batches

A household canning operation is a production line that runs hardest at harvest. The goal is a year of food on the shelf, safely. The rules don’t change at volume: every jar still needs a tested process, the right time and the right pressure. Our canning and food storage guide covers the pressure canning steps.

Match the process to the jar

Processing times depend on jar size and pack. Half-pint and pint jars share the same times, and 1½-pint and quart jars share theirs. Quarts and raw-packed foods usually need longer. 1 Use the time and pressure for your elevation: food can spoil if you don’t adjust above 1,000 feet. 1

Pressure canning is the only recommended method for meat, poultry, seafood and vegetables. Using a boiling water canner for these foods risks botulism. 2

Set up for volume

  • Equipment. USDA’s published processes apply to pressure canners that hold at least four quart jars. 6 A second canner doubles your output without changing any process.
  • Gauges. Have dial gauges tested every year, and replace any that read more than 2 pounds off. 6
  • Cooling. Let each canner depressurize on its own and cool jars at room temperature. 1 Plan your work so you’re never tempted to rush this.

Storage and rotation

Penn State Extension’s storage rules: 3

  • Store jars at 40 to 70°F, and never above 90°F, which can cause spoilage and broken seals.
  • Keep them dark: in a closet, in boxes or covered.
  • Date every jar, take stock once a year and use the oldest first.
  • Most canned food keeps its best quality for up to a year. Food canned by tested recipes stays safe as long as the seal holds.
  • Throw out food that has spoiled.

To store a year of food, count what your household actually eats in a week, multiply by 52 and plan the garden to match with our land and garden calculator.

Before you sell any of it

Turning a canning operation into income is regulated, and the rules are strict for a reason.

  • Federal rules. A low-acid food has a finished pH above 4.6 and water activity above 0.85. An acidified food is a low-acid food with acid added to bring it to pH 4.6 or below. Commercial processors of these foods must register with FDA, file a scheduled process through a process authority, and work under someone trained at a Better Process Control School or equivalent. 4
  • Home-based exemptions. Penn State notes that only home-based food businesses (Limited Food Establishments in Pennsylvania) are exempt from the federal canning rules. 4
  • Cottage food laws. These are state laws and they vary. Illinois, for example, bans low-acid canned foods and requires a lab test or tested recipe showing pH 4.6 or below for canned tomato products. 5

Check your state’s cottage food rules with your extension office or health department before you sell a single jar.

Sources

  1. National Center for Home Food Preservation, Selecting the Correct Processing Time
  2. National Center for Home Food Preservation, For Safety's Sake
  3. Penn State Extension, Storage Guidelines for Home Preserved Foods
  4. Penn State Extension, Acidified and Low-Acid Food Regulatory Requirements
  5. University of Illinois Extension, Cottage Food: Allowed Products
  6. National Center for Home Food Preservation, Using Pressure Canners