Kerr Canning Jars, Modern Mason Jars
Kerr canning jars are a renowned brand in home canning, celebrated for their durability and innovation. Founded in 1903 by Alexander Kerr, the company introduced game-changing designs, including wide-mouth jars and a metal lid with a rubber gasket in 1915, simplifying and improving the canning process. Available in various sizes and styles, Kerr jars are made from tempered glass to endure high-pressure canning. Collectors value antique Kerr jars based on factors like age, condition, embossing, and color. Widely available today, Kerr jars remain a staple in food preservation and a cherished collectible.

Kerr Canning Jar Bestsellers

Kerr Wide Mouth Mason Canning Jar Lids
Kerr Wide Mouth Mason Canning Jar Lids provide a BPA-free, reliable seal for food preservation, available in a pack of 72 lids without bands or rings.

Kerr Regular Canning Jar 1 Dozen Rings
Kerr Regular Canning Jar Rings come in a set of 12 durable metal rings, designed to securely hold lids in place during the canning process for safe and reliable food preservation.

Kerr Wide Mouth Half-Pint Glass Mason Jars
These Jars are BPA-free, freezer-safe, and come with Sure Tight lids, ensuring a secure seal for up to 18 months, perfect for preserving salsas, syrups, sauces, fruits, and vegetables.
Kerr Canning Jars Overview
Kerr canning jars are a trusted name in home canning, known for their quality, durability, and rich history in food preservation.
- Kerr Mason Jars: Versatile and reliable, these jars are perfect for preserving a variety of foods, from fruits to sauces.
- Kerr Half Pint Jars: Compact and convenient, these jars are ideal for small-batch canning, such as jams or condiments.
- Kerr Quart Jars: Designed for larger canning needs, these jars are perfect for preserving soups, vegetables, and more.
- Kerr Jelly Jars: Stylish and functional, these jars are tailored for jelly-making and other spreads, featuring decorative designs.
- Antique Kerr Canning Jars: Sought after by collectors, these jars are valued for their historical significance, unique designs, and vibrant colors.
Benefits of Kerr Canning Jars

- Durability: Made from tempered glass, Kerr jars are designed to withstand high temperatures and pressure during the canning process, ensuring long-lasting reliability.
- Versatility: Available in various sizes and styles, they accommodate a wide range of preservation needs, from jams and jellies to soups and vegetables.
- Eco-Friendly: Reusable and made from recyclable materials, Kerr jars support sustainable food storage practices, reducing waste.
Kerr Canning Jars History
Kerr canning jars were founded in 1895 by Alexander H. Kerr and his brothers, initially selling jars made by others before producing their own. The brand gained prominence with groundbreaking innovations, including the two-piece self-sealing lid and wide-mouth jars introduced in 1920, revolutionizing home canning. Starting with the Hermetic Fruit Jar Company in 1903, Kerr continued to expand, adapting to challenges like material shortages during World War II and setting industry standards that remain influential today. Over a century later, Kerr remains a trusted name in food preservation.
Kerr Canning Jars Reviews



Kerr Canning Jars FAQ
What are Kerr canning jars made of?
Kerr canning jars are made from tempered glass, which is designed to withstand the heat and pressure of the canning process. This durable material ensures that the jars can be reused for multiple canning seasons.
How do I properly seal Kerr canning jars?
To properly seal Kerr canning jars, place the jar lid onto the jar’s rim, ensuring it’s centered. Then, apply the metal screw band and tighten it until it’s fingertip tight. Once the jar goes through the canning process, the seal will form as the jar cools, creating an airtight closure.
Can I use Kerr jars for both hot and cold canning?
Yes, Kerr jars are suitable for both hot and cold canning processes. However, it’s important to follow proper canning guidelines for each type of preservation to ensure the jars seal correctly and your food stays safe.
Are Kerr canning jars microwave-safe?
Kerr canning jars are made from tempered glass and are designed to withstand high temperatures. However, they should not be used in the microwave for canning purposes. If reheating in the microwave, ensure the jar is not sealed, and the contents are microwave-safe.
How do I store Kerr jars to ensure they last?
Store Kerr canning jars in a cool, dry place away from direct sunlight. Ensure the jars are clean and dry before storage, and keep them in a safe location where they won’t be subject to impact or cracking.
Can I reuse Kerr jar lids?
Kerr’s jar lids are designed for single-use to ensure a proper seal. Reusing lids can result in a compromised seal and affect the quality of your preserved food. However, the metal bands can be reused multiple times as long as they remain in good condition.
Are there any special care instructions for vintage Kerr jars?
Vintage Kerr jars should be handled with care to avoid damaging the glass or embossing. While they are typically safe for use, it’s best to inspect them for cracks or chips before use. Antique jars are often prized by collectors, so preserving them in their original condition is important if you’re collecting them.