Blue Mason Jars do not 'turn' blue, they are manufactured from a greenish/bluish glass. This glass contains trace amounts of Iron and/or Cobalt ... the greater the concentration, the deeper the color.
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Yes, storing wild rice in glass mason jars is a good idea. Glass jars provide an airtight seal that helps keep moisture, pests, and odors out, preserving the quality and freshness of the rice. Additionally, they are non-toxic and do not impart any flavors to the food. Ensure the jars are kept in a cool, dark place to maximize shelf life.
The Ball mason jars marked with a "5" typically indicate they were produced in 1933. These jars are part of the Ball Corporation's history of glass canning jars, which began in the late 19th century. The "5" represents the year of production in a system used by the company to identify the age of their jars.
Yes. Glass has been around for about 9000 years and glass bottles were produced 3500 years ago. The Jamestown settlers made glass bottles and jars in the early 1600s. Glass jars for preserving food were sealed with a flat tin lid and wax until 1858 when John Mason invented the Mason Jar with a screw-on lid. By 1864 a glass jar would look very similar to a modern peanut butter jar.
Mason is the company that manufactured many of the glass jars used to "can" produce. Now that very few people preserve their own food, many of these jars are now collectible. Mason Jar is the shop or amenity and food and drink service business, in Houston, Texas
There are numerous websites where you can buy canning jars wholesale. Try a Google search.
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Glass jars can be made into many colors.
Yes, the microwave safe symbol is typically present on mason jars.
The Mom's Mason jars were made in 1975. They were manufactured in Columbus, Ohio and are worth between $1.00 and $2.00.
If it is a blue glass jar than it is an old one. They used those jars to store many things from foods to poisons during the civil war. Also, check the lid if it has one. Metallic lids were used on the older mason jars. I have also heard that if the jar doesn't have a seam going down the side of it, it is one of the oldest models that mason produced. They hand blew jars before machine glassing them.