How Can You Tell How Old A Mason Jar Is

Do old Mason jars contain lead?

A reader emailed asking if the old gray lead lids used on old canning jars are dangerous to use.

They are not safe even though the lids are zinc, not lead.

Also, the old jars are made of brittle glass and may shatter from the heat of the canning process.

Approved lids today have a rubber seal built into them..

Why are they called Mason jars?

A Mason jar — named after John Landis Mason, who patented it in 1858 — is a molded glass jar used in home canning to preserve food. The jar’s mouth has a screw thread on its outer perimeter to accept a metal ring or “band”.

What colors do mason jars come in?

Each mason jar is made from high-quality stained glass in a variety of different colors. These colors include purple, green, pink, blue, amber, red and clear.

Are Atlas Mason jars old?

These old canning jars come in a variety of different styles and often feature the Atlas name somewhere on the glass. Newer jars were made by other companies after Hazel-Atlas stopped manufacturing them in the 1960s, but the oldest jars are among the most valuable.

Are Kerr canning jars valuable?

Typical values: The value of antique Ball, Mason and Kerr canning jars varies greatly. Typical prics range from $8 to $25 a jar.

What does the number on the bottom of a Mason jar mean?

Many Ball mason jars have a number printed on the bottom of the jar, but this is a mold number that does not indicate the year of production. Rather, the mold number tells you where the jar was positioned on the glass-making machine that was used to produce it.

Are Kerr and Ball the same company?

If the Kerr jars and their packaging looks eerily similar to that of Ball jars, it’s because they’re basically the same: Both Ball and Kerr brands are now owned and manufactured by the parent company Jarden.

What is a perfect mason jar?

The Ball Perfect Mason was a brand of glass fruit jar (canning jar) made by the Ball Bros. Glass Company. Glass jars with this embossed marking was the most popular jar for home canning ever produced in the United States. …

Are old Mason jars worth anything?

Value depends on a lot of factors, but many canning jars sell for under $15. … According to Country Living, an upside-down Ball canning jar designed to rest on its lid is relatively rare and made between 1900 and 1910. It’s valued at about $1,000.

What is the difference between wide mouth and regular canning jars?

#1 Wide Mouth Jars Stack Stacking is simply essential in a small pantry. The wide-mouth jars stack safely on top of each other. The regular cans have the same size top and bottom so they don’t nicely nest on top of one another.

Why are old Mason jars blue?

Those blue mason jars were mass produced until 1937 using sand from around Lake Michigan. It was that sand that gave the glass its blue hue.

How can you tell if glass is antique?

Other markings on antique glass pieces that offer clues to its age are: Pontil mark of a blown glass piece and whether it is highly polished or not. Mold marks. Any marks within the glass itself such as bubbles….Antique Glass MarkingsTrademark.Logo.Symbol.Signature.

How do I know if my mason jars are valuable?

If you have a jar with one of the older logos, it will likely be worth more than one with a newer logo. Next is the color. Clear and pale blue are the most common colors, but jars of all colors were produced. Yellow and amber jars were common.

How much are old Ball Mason jars worth?

The smaller and more common vintage jars usually sell for less than $20. However, the vintage green jars or those with special wire carriers can sell in excess of $300. The logo is the best way to date the jars because the Ball logo changed throughout the years.

Can you reuse mason jar lids for storage?

The simple answer is no: Canning lids are designed for one-time use. … So, if your jars fail to seal properly the first time, you have to put fresh lids on your jars before you reprocess them. And you definitely shouldn’t reuse your lids from year to year, no matter how tempting it may be to save a few dollars.

Are Atlas Mason jars worth anything?

Atlas mason jar values vary between $10 to around $60 depending on a number of factors including the age, color, and condition. The older amber-colored E-Z Seal Atlas mason jars, which were made around 1910, are among the more valuable.

What can you do with old jars?

13 Brilliant Ways To Use (Or Reuse) A Glass JarPut A Spout On It. This is one of my all-time favorite mason jar projects, because it’s so easy. … Accessorize! … Marinate Meat. … Make A Soap Dispenser. … Give It A Makeover. … Light It Up. … Make A Pretty Candle. … Plant An Herb Garden.