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Does Fire-King Jadeite Contain Lead?
Fire-King Jadeite is a type of durable glassware.
This post will go over how to identify Fire-King Jadeite pieces, the history of this type of glassware, and some tips on caring for them.
I will start with an overview of what Fire-King Jadeite is.
It’s a type of bakelite material that people used in making dishes and other kitchenware from 1933 until 1974.
When production stopped because new plastics made them obsolete. These plastics were more easily molded into desired shapes.
Pieces are always clear or white to light green and usually have three-digit codes printed on them.
Which tells you their year of manufacture and any other information such as who designed them or where they made them.
Does Fire-King Jadeite Contain Lead?
According to the EPA (Environmental Protection Agency), the lead content in fire-king jadeite glass is almost non-existent, less than 0.001% and its considered much safer than pyrex on lead content levels. It’s quite different from other jadeite colors because of its unique iridescent properties.
A little background: Fire-King was a name given to a line of glassware that entered production in the ‘30s and continued in various forms well into the ‘70s.
It was initially sold door-to-door by a company called Federal Glass Co.
In ‘58, Anchor Hocking gained Federal and took over their glass lines’ production, marketing, and sales.
They kept using the name “Fire-King” until 1970, when they changed it to “Celebration.”
Fire-King Jadeite is gorgeous stuff to behold. There’s an incredible amount of cookware that includes this iconic design.
It can be had for next to nothing if you can find some at yard sales or thrift stores. Of course, rarity always affects price, so the rarer the piece, the higher its value.
Fire-King Jadeite is sometimes called “Ice Green” or “Avocado.” It’s quite different from other jadeite colors because of its unique iridescent properties.
The typical color used in Fire King Jadeite is deep hunter green with purple, blue turquoise, and ‘glitter’ running through it.
Under direct light, you’ll see tinges of pinkish reds.
Is Fire King Jadeite Safe To Use?
Yes. The ceramic material in Fire King Jadeite makes it resistant to scratching and chipping like other cookware materials.
While it has many benefits, Fire King Jadeite(Amazon Link) can be more susceptible to breakage than other cookware types.
Another important consideration is the manufacturing process used in its production.
Deco Ware Company in Japan manufactured early products made with Fire King Jadeite and have the mark “Made in Japan” on the bottom of each piece.
Both improved manufacturing techniques and material sourcing have changed since then.
Today, Anchor Hocking Corporation (a U.S.-based company) produces Fire King Jadeite. They allow for better quality control during production.
Given these changes, newer pieces of cookware that carry this product name show less variance when compared to one another than older pieces do among themselves.
Manufacturers have improved the quality control process over time. This has made newer Fire King Jadeite more durable than older Fire King Jadeite.
Does Milk Glass Contain Lead?
The answer is No! Milk glass contains very low lead levels and does not pose any threat to you or your family.
You can rest assured that if you have milk glasses at home, they are safe for use.
Some milk glass, referred to as “mason jars,” were usually used for canning purposes.
However, they are technically pressed glass containing very low lead levels and do not pose any threat.
Milk glass was first made around 1900. People used them for food containers for pickles, honey, jams, jellies, and vegetables.
In the early days, there was no known regulation or testing done on these products.
-So it wasn’t until years later that people realized some items had very high lead levels from being poorly tested before marketing.
Today’s milk glass has fewer toxic substances, and new regulations ensure the public’s safety.
Does Jadeite Have Uranium?
No scientific studies have shown a significant amount of uranium in jadeite. Jade is a rare mineraloid that is difficult to distinguish from nephrite and other closely related minerals for certain laymen.
What sets jadeite apart from most minerals is that it has two percent sodium oxide:
-One percent aluminum oxide, four percent calcium oxide, 0.5 percent iron oxide, six percent silicon dioxide, and one to five percent magnesium oxide.
This all adds up to 99% total. This composition varies faintly with the inclusion of trace amounts of chromium and titanium oxides in most cases.
They named Jadeite after Motonobu Kogejie mine. This was in the Nishiusuki district in Japan.
The only significant source of good-quality jadeite is Myanmar, where it’s rare and, thus, more valuable.
Jadeite’s distinct coloring comes from the included iron oxide that makes jadeite pyroxene like aegirine, augite, and diopside.
In 2006, scientists from the University of Texas analyzed green jadeite samples .
These were from Myanmar using inductively coupled plasma-mass spectrometry to see if they could find any uranium or other impurities inside them.
They didn’t detect any because there were no traces of uranium found in their tests.
Can You Spot the Fake Fire-King Mug?
Yes! The first way that counterfeiters try to pass off their products as authentic Fire-King items is by using an unauthorized logo design.
This should be easy enough for collectors who know what they’re looking for. – Compare the shape, size, and type of lettering on each mark to ensure they match.
The second way they produce knock-offs is by using bases that other companies made.
It’s often done with American Bisque or Anchor Hocking, but some have McCoy, Meito, and even Hutschenreuther plates.
The difference, in this case, is usually coloration – look closely at the glaze finish. You can often see the plate’s seams break off its original base mold before firing.
Unmarked mugs are another problem. – Some unscrupulous individuals have tried to pass them off as Fire King by sticking a sticker on them with “Fire-King” printed on it.
This tends to away what they’re up to, though, so this isn’t usually a problem.
Another way to misidentify mugs is by calling them “Wedgwood” or “Queen’s Ware.”
People often think that these are variations of Fire-King because they’re made of the same white opaque glass, and their names start with FU.
The truth, though, is that they’re not at all related. Queen’s ware is a form of hard-paste porcelain made in England for over 250 years.
– long before Fire-King mugs were ever produced.
Does Vintage Anchor Hocking contain lead?
It all depends on when. If its manufacture date was before 1970, there is a high possibility it contains lead on the lining of the item.
It’s believed they switched from lead to “safer” products during 1970, but it can’t be sure if some were only changed a little later or not at all.
There are two ways to test your glassware for purity:
1) A “scratch and sniff” test using a coin [ideally with George Washington’s face on it].
If you use a penny [which has copper in it] and scratch your glass with it, it should smell like metal if there is any lead in the glass.
If there is dirt, then you won’t smell anything. This method does not work on paper labels.
2) Place a few drops of either white vinegar or a few drops of muriatic acid [chloride with hydrogen in it] on the glass.
If there is lead in your glass, you will see a fizzy action inside the glass where the acid comes into contact with it.
If there isn’t any lead, nothing happens, and you’ll see some bubbles from the fizzing.
Is all glass lead-free?
No . You can find lead in certain types of glass, including some high-quality wine glasses.
One can make glass in several different ways, with different chemicals. Lead is often added to glass products at the end of the manufacturing process for two reasons:
- To decrease production time
- To make the glass more durable
Though lead has many beneficial properties that make it a useful additive in making certain types of glass.
Its use has received discontinuation over concerns about its toxicity.
In particular, there have been concerns about how these glasses can easily break when washed in a dishwasher by people who are not aware, they contain lead.
Lead makes the molten glass easier to work with and decreases production time by increasing the viscosity of “fluidity.”
This means that you need less energy to manufacture the glass, meaning less fuel burn.
The amount of lead used in glass is tiny, usually around three grams per metric ton.
But small amounts can add up quickly when considering the total weight of all products containing lead.
Why is jadeite so expensive?
One reason jadeite is so expensive is that it takes many years to form naturally, limiting its supply.
A mineral called sodium-rich albite breaks down into clay over hundreds of thousands of years in the presence of water and produces jadeite.
This means that jadeite is only found in certain areas, which contribute to its high price.
Jadeite’s hardness also makes it an expensive commodity. It has a Mohs hardness rating between 6.5 and 7, while quartz generally has around seven on the Mohs scale.
The harder the stone, the less susceptible it is to scratches or abrasions that may lower its value.
However, hardness can also affect durability because softer stones are more likely to lose their surface luster over time.
The color variation possible in jadeite leads some people to prefer it to more uniform-coloured gemstones.
Jadeite is also rarer than some other types of jade, making it more expensive.
Does Corelle Ware have led in it?
No. Corning manufactures Corelle. Corning is more known for its cookware. Corelle comprises 4-5 layers of material with a resin between each layer to strengthen it.
The bottom layer is the glass itself. This glass does not leach any chemicals. Therefore, no lead enters your food when cooking or eating out of Corelle dishes.
The several top layers are very durable and not likely to chip. Also, each dish has its design fused into it, which makes it unique.
Do white Corelle dishes contain lead?
Yes. Over the last few years, there has been a lot of talk about how dangerous it is for children and adults to use products containing lead.
Recently, “The Guardian” reported on lab tests that found significant lead levels in some white Corelle dishware.
The test results showed some of the pieces had more than 90 times the limit for lead in dishes and cookware, which is set by U.S. Pharmacopeia Convention (USP).
Other dishware products contained smaller amounts of lead, including pasta bowls and lead plates, similar to some plates analyzed in a French test.
According to “The Guardian,” they conducted the tests using X-ray fluorescence, a widely accepted method for identifying lead in ceramic ware.
The chemicals used in producing the dishes leave traces of lead, but it is unclear whether these traces are dangerous.
Lead is not suitable for people’s health and should not be in children’s products.
How do You Collect Jadeite Dishes?
This is how you collect Jadeite dishes.
I own a minimal amount of jadeite (an “exceptionally rare material”) dinnerware. The thinking I use for deciding if I will acquire a piece is roughly this:
If it’s not broken, don’t fix it.
If there is no visible damage to the dish and it still has its original factory finish, I have no reason to collect it or spend money on it.
Although this line of thought seems logical, as a collector who frequently buys pieces that aren’t entirely perfect.
Many people might think otherwise––it would be difficult for them to pass up a gorgeous dish with one tiny glaze crack in the corner. To each his own, though.
When assessing a piece for purchase, it is always best to handle the item and inspect it as thoroughly as possible.
It can be challenging to maintain a calm approach considering that you might discover something unexpected.
––so it’s excellent practice to take your time with this process and try not to panic.
Jadeite is an affordable, versatile material with a long history of use. It’s inexpensive to produce and easy to maintain.
According to the EPA (Environmental Protection Agency), the lead content in jadeite glass is almost non-existent.
– less than 0.001%, according the EPA (Environmental Protection Agency).
If you’re worried about that one time when your mom or grandmother got sick from this type of dishware.
Know that it was probably not due to the presence of lead at all but rather because of radiation or mercury vapor exposure while working near fluorescent lighting fixtures.
Both emit high levels of ultraviolet light, which can cause cataracts and other eye problems like macular degeneration.