Does vintage corningware contain lead

However, there is something to be aware of when it comes to most vintage dishes and cookware, including Pyrex. It can contain lead. Vintage Pyrex has gained a lot of popularity lately. You used to find it really cheap in thrift stores from when people were clearing out old family dishes but now it seems like everyone is collecting it and it’s ...

Check back here periodically for updates. Each time I add a new post I will upload a picture to the photo grid below, and link it to the post with the test results. Click any of the images below to see the corresponding XRF test results (listing all metals found) for that exact item pictured. ... Read More about "How much Lead is in my vintage Pyrex?" Here are pictures of each one I've ...Claim: Vintage Pyrex contains unsafe levels of lead, making it dangerous for any sort of food serving or storing purpose.There are some steps you can take to decrease lead exposure when serving food. Determine if your dinnerware is safe to use. Since 1971, the Food and Drug Administration established and began ...A lot of Pyrex and Corelle collectors will be surprised to know some of their vintage pieces contain very high levels of lead, primarily on the decorative pattern elements. I'm not talking about levels that are marginally over what's considered safe, I'm talking way over the top levels of lead.Blue Cornflower. Price range: $20 to $100. View on Etsy. The Blue Cornflower pattern is one of the most recognizable vintage Corning Ware patterns. Originally introduced in the 1960s, this blue and white floral design was the first released in the line. The pattern is based on a traditional blue cornflower motif and is both elegant and timeless.Vintage Pyrex DOES NOT contain lead. Feel free to buy it and use it safely for life. ... Corningware is made of Pyroceram, a type of glass-ceramic material (combining both amorphous properties of glass and polycrystalline properties of ceramic.) ... I can not however tell you if to does or does not contain lead. I am also not certified to ...I know the question in your heart already does vintage Corningware contains lead. Yes, it does. The paint on the outside of vintage Corningware bowls and baking dishes usually test positive for the lead between 15,000 – 100,000 PPM Lead. This is a lot of lead and can be really dangerous to our health. WHICH PYREX HAVE LEAD. …

Many of the vintage Corningware casserole dishes like this (specifically the ones with this blue cornflower pattern) that I have tested have been negative for Lead in the exterior painted decorative (blue) markings, but NOT all of them.11 Rare Corningware Patterns for Every Vintage Crockery Collector. Corning didn’t obviously stick with the same pattern for ages! So, all their explorations and exclusive releases lead to some rare designs as follows: ... No, old Corningware isn’t lead-free and usually tests positive for 15,000 – 100,000 PPM values. I am sure all of you ...Fortunately, the results show that all the samples I analyzed do not contain lead. The identified characteristic peaks were correlated to the paint samples' colors; titanium dioxide and zinc oxide were white, carbon was black, and sulfur-containing sodium silicate was blue (Figure 5). Figure 4. The growing batch list of the paint samples.The vintage Corelle dishes or Corelle pre-2005 dishes are the Corelle dinnerware sets that contain lead, vintage Corelle dishes normally have decorations on them. The Corelle Company now advises people to stop using vintage Corelle for mealtime and instead use them strictly for decorative purposes.5, Listen to the sound. We can pick up a glass and tap it with your finger. Lead-free glass makes a crisp sound, while lead glass sounds dull. And we can see the clear distinction between glass goblet and glass cups. When we tap the cup, we can hear clearly the difference in sounds. 6, Look at toughness.Lead poisoning can cause stomach problems, headaches, and even seizures in adults, and is especially dangerous for children and fetuses because it affects the development of the brain and nerves ...Some Pyrex and Corningware, are NOT lead free. Older Corningware baking dishes often contain arsenic. With some very rare exceptions, the paint on the outside of both vintage Pyrex and vintage Corningware bowls and baking dishes will usually test positive for lead between 15,000 - 100,000 PPM lead.Does vintage glass contain lead. Some vintage glassware, especially those produced before the 1970s, may contain lead. It’s always recommended to exercise caution with older glassware. If in doubt, consult with a reputable expert or have the glassware tested for lead content. What percentage of lead is in Waterford Crystal

Oct 19, 2023 · Vintage Pyrex was made with a type of glass that contained lead, which can be toxic if it is leached into food or beverages. However, the amount of lead in vintage Pyrex is generally considered to be low, and it is only a concern if the glass is scratched or chipped. Newer Pyrex is made with a type of glass that does not contain lead, so it is ... No, borosilicate glass contains no lead because it is made of non-toxic materials that will not leach harmful chemicals into your food or drink. This glass is also free of BPA, making it ideal for drinking. Because the substance does not leach out as it does in plastic containers, bottles, and packaging containing BPA, food, and drinks from ...Now, if you have any older dishes, that gets a little trickier. You'll want to avoid eating off of older Corelle dinnerware if it shows obvious signs of deterioration; if the glaze is worn, if the paint is melting or chipping, etc. To make sure you're not consuming lead, avoid eating hot foods on the dishes or drinking hot beverages from ...Corningware can be used on a gas stove top with caution. Look for stovetop-safe Corningware labeled for gas stoves. Use a heat diffuser for even heat distribution, preheat slowly, and keep the flame at a low to medium level. Avoid extreme temperature changes and use non-metallic utensils. Follow the manufacturer's instructions for specific ...

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Accidents happen and when a piece of your favorite Corelle dinnerware breaks, it can be frustrating trying to find a replacement when you discover that your pattern has been discontinued. To help you with your search for replacement or additional pieces for your Corelle collection, we have created this catalog of the Corelle patterns.Vintage Pyrex was made with a type of glass that contained lead, which can be toxic if it is leached into food or beverages. However, the amount of lead in vintage Pyrex is generally considered to be low, and it is only a concern if the glass is scratched or chipped. Newer Pyrex is made with a type of glass that does not contain lead, so it is ...People also ask,does vintage corningware contain lead? With some very rare exceptions, the paint on the outside of both vintage Pyrex and vintage Corningware bowls and baking dishes will usually test positive for lead between 15,000 - 100,000 PPM lead.A Tanish Trading company frying pay was among the highest in lead content from KING 5's purchases. The bowl contained 523 parts per million lead. Dr. Fellows called it unsafe. "Any cookware ...Yes! Corningware is Lead-free because it is made up of glass-ceramic material that is capable of withstanding high temperature, is food-safe, and is non-toxic. READ ALSO: IS CORELLE DINNERWARE …

Corningware Blue Cornflower kitchenware has been an integral part of American households for over 60 years. The collection includes a casserole set, a baking dish set, and a bowl set. Whether you are needing a ramekin, pie plates, petite pans, roasters, or sauce-makers. Knife sets, mixing bowls, and glassware round out this kitchenware …RARE Vintage Corning Ware Blue Cornflower 11 Inch P-16-B Casserole With Lid Made in U.S.A. This wonderful dish measures 11 inches by 11 inches, with a bottom stamp that reads "Corning Ware 11 IN P-16-B Made in U.S.A." This piece is in wonderful condition, it does have a few surface small scratches with a little yellow staining near the scratches.Hereof,is older corningware lead free? Some Pyrex and Corningware, are NOT lead free.Older Corningware baking dishes often contain arsenic. With some very rare exceptions, the paint on the outside of both vintage Pyrex and vintage Corningware bowls and baking dishes will usually test positive for lead between 15,000 – 100,000 …As we see with the example from Fiestaware, the answer is obviously not. Lead free refers more to the process and system by which the item is made and speaks less to the presence of any trace amount of lead. Homer Laughlin converted their factories to a lead free system and starting in 1986, they began touting their Fiesta as “Lead Free.”.Unfortunately, even vintage or antique books that may not present a total content hazard by modern standards (because XRF readings of all components — pages and cover — come in below 90 ppm Lead) may present a significant Lead dust hazard given their age and state of deterioration.. Lead dust hazards are evaluated and measured in a completely different way (with different units of ...Noritake Stoneware, Made in Japan plate: tested negative for lead! #Woot! Please note: MOST of the vintage Noritake I have tested has been positive for high levels of lead. When it comes to the relative safety of vintage dishware, you really cannot extrapolate simply from a brand name. To see more safe choices for your family, check ...We got an email from Vickie H. asking us about a claim she saw on social media. It was from the New Hampshire Public Health Services Facebook page.The post r...The item "RARE STAMPED vtg Corningware Le Romarin Spice O' Life! 10x10x2 EUC! Free ship" is in sale since Wednesday, August 4, 2021. This item is in the category "Home & Garden\Kitchen, Dining & Bar\Cookware\Casserole Pans". The seller is "melissajacobs" and is located in Catasauqua, Pennsylvania. This item can be shipped worldwide.

Jul 27, 2023 · Unlike lead glass, which contains lead oxide to enhance optical properties, borosilicate glass is lead-free and considered safe for use in food and beverage containers and other household items. Pyrex, for example, is a well-known brand that produces borosilicate glass products for various applications, and they advertise their glassware as ...

Some Pyrex and Corningware, are NOT lead free. Older Corningware baking dishes often contain arsenic. With some very rare exceptions, the paint on the outside of both vintage Pyrex and vintage Corningware bowls and baking dishes will usually test positive for lead between 15,000 - 100,000 PPM lead.It definitely has lead. If the swab does not turn red, it may have led to the infection, and further investigation is required. Is there lead in Vintage Corning Ware? The paint on the outside of both vintage Pyrex and vintage Corningware bowls and baking dishes, with a few exceptions, will usually test positive for lead between 15,000 and ...Does vintage CorningWare contain lead? The actual dishes do not contain lead, but the paint on almost all vintage items can contain lead. Vintage bowls and baking dishes have been found to test positive for lead. The readings can be between 15,000 and 100,000 PPM (parts per million) of lead.Corelle dinnerware sets containing lead are older vintage Corelle plates or Corelle pre-2005 dishes. Decorative patterns are common on vintage Corelle dinnerware. The Corelle Company now encourages consumers to cease using historic Corelle for meals and only use it for decoration.The manufacturer of the Corelle dish recommends that Corelle not be heated above 350° F (177° C) for oven safety. It is a Corningware casserole dish or Pyrex that can withstand temperatures ranging from 400°F to 500°F. Corelle dinnewares are known for it's versatility and durability but do you know what is the safe oven temperature for ...Old pyrex pieces, which came in clear glass form, contain no lead, making them safe to use. On the other hand, there are vintage pyrex pieces painted in colors with high lead levels. While it is only the outer part of the collector's item that contains lead, you should be careful when collecting cracked vintage pyrex pieces.Sep 30, 2023 · Does Corningware contain lead? The short answer is: it depends. Corningware produced prior to the late 1980s may contain higher levels of lead. However, pieces made after 1989 are advertised as lead-free and follow FDA regulations. The only items that tested positive were older. The Corelle I have that tested positive for lead in the design was Crazy Daisy plates, Woodland Brown plates, and the Wildflower casserole dish. The Pyrex that tested positive was basically everything I own and any of the parts with color, which included Crazy Daisy, Blue Snowflake Garland, Forest ...However, there have been reports of lead contamination not only in Corelle plates but also in other dinnerware brands that we frequently use. As a result, we need to know if Corelle Old Town Blue contains lead so that we may make an informed decision. Currently, leading a healthy lifestyle isn't something we joke about.

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0 Comments. White Corningware is generally considered to be lead-free as it is made from tempered glass and does not contain any lead or other heavy metals. The brand Corningware, which is known for its iconic white casserole dishes, has been around since the 1950s and has always been made from high-quality, durable materials that are safe for ...The source of this lead is the paint on your vintage cookware, which tests between 15,000 and 100,000 PPM. That's incredibly high, and you should avoid baking or eating from dishes that have even a trace of lead inside/on them. Corningware confirmed that all of its pre-mid-2000s dishes contain lead, so this is not something to ignore.Do not use Visions cookware for deep fat frying. Do not heat up empty Visions cookware in the Microwave Oven to avoid harm. Never use repair chipped, cracked, or broken glass Vision and glass-ceramic items. Do not use the cover of Visions cookware under a griller or in a toaster oven. Do not place a hot glass cover on a cold or wet surface, or ...In response to a customer enquiry about the safety and usability of their vintage Corelle tableware from around the year 2000, (note: vintage is older than 20 years). Pyrex clear glass is lead-free. Vintage Brown Tupperware is lead, cadmium, mercury, and arsenic-free. Yellow Tupperware has 2677 ppm cadmium and 15 ppm mercury.Some argue that the old vintage Corningware contains traces of lead and cadmium, while others claim that the newly manufactured ones do. Who are we to believe? While Corningware has stated that its products are designed with safety in mind to protect the consumer’s health, others believe that this is not entirely true.Do older Corelle dishes contain Lead? Prior to the 1990s, virtually all glass and ceramic ware made anywhere in the world contained Lead as a primary ingredient in the decorating fluxes and glazes. All our products have been Lead free since the mid-2000's. Why was CorningWare discontinued? More than 750 million pieces of CorningWare have been ...Aug 22, 2023 · Pyrex’s Transition to Lead-Free Glass. In response to the FDA ban, Corning Glass Works phased out the use of lead in Pyrex products. By the late 1970s, all Pyrex mixing bowls and other cookware were made with lead-free glass. This means that any vintage Pyrex mixing bowls manufactured after this time do not contain lead. 1. Unveiling the Past: A Beginner's Guide to Corningware and Corelle Marks. 2. Patterns of Nostalgia: Identifying Your Vintage Corelle Dinnerware. 3. The Collector's Journey: How to Spot Rare CorningWare Designs. 4. From Flea Markets to Online Auctions: Where to Find Vintage CorningWare and Corelle. 5.Vintage Pyrex can be used for cooking and eaten out of, but much of it does contain copious amounts of lead. If a set of Pyrex dishes is fairly old and has experienced a lot of use, there might come a point when the dishes could begin to leach lead into the food they are holding.There is also sufficient scientific evidence that lead exposure causes cardiovascular diseases in adults as well. How to Avoid Lead in the Kitchen and Dinnerware. Don’t use vintage dishware to store, prepare or eat or drink from: Don’t store food in any dishes, antiques or collectibles that may contain lead, especially pieces … ….

RELATED: DOES BLUE CORNFLOWER CORNINGWARE CONTAIN LEAD? IS SCRATCHED PYREX SAFE TO USE? ... (RESTORE VINTAGE CORNINGWARE) CORNINGWARE LEAD WARNING. The Presence of lead in most cookware and dinnerware is giving consumers a lot of concern as they don’t want the …This non-stick frying pan is made of natural granite stone material that is lead-free, PFOA-free and safe to use, and good for your health. The internal coating of the Yuziz Granite stone cookware is 100% APEO-free and Eco-friendly. Preparation of breakfast, eggs, pancakes, veggies, and meats is a breeze.Via/ eBay. Rubin's test of a vintage Corningware casserole dish in the Spice of Life pattern (1970s/80s) revealed 26,500 ppm of lead and some cadmium. Though this was on the outside decoration, she cautions that there could still be exposure risks. The decoration on a vintage Corelle bowl, also made by Corning, tested positive for lead as well.Many of the vintage Corningware casserole dishes like this (specifically the ones with this blue cornflower pattern) that I have tested have been negative for Lead in the exterior painted decorative (blue) markings, but NOT all of them.Pyrex’s Transition to Lead-Free Glass. In response to the FDA ban, Corning Glass Works phased out the use of lead in Pyrex products. By the late 1970s, all Pyrex mixing bowls and other cookware were made with lead-free glass. This means that any vintage Pyrex mixing bowls manufactured after this time do not contain lead.Originally published: April 17, 2018 Updated: December 28, 2019 Everybody's grandmothers seems to have had these! These butterfly pattern vintage "Corelle by Corning" (Made in New York) bowls tested positive for Lead at 23,300 ppm when tested with an XRF instrument (this is the reading of a test done directly on the decorative pattern elements on the outside of the bowl).Remarkably, the lead content in cast-iron cookware has been a source of worry. Although lead is rarely found in cookware of this type, there are some notable exceptions. Enamel finishes on cookware, for instance, have been linked to the presence of dangerous substances like lead. Hence, knowing how to test cast iron for lead is crucial if you ...Jul 3, 2021 · You can quickly determine if the Corelle county cottage has lead by using the XRF instrument, a lead test kit, or asking the manufacturer if the Corelle dish meets Proposition 65 standards. Furthermore, since the mid-2000s, all Corelle items have been lead-free. Corelle encourages using these patterns as ornamental pieces. Older pieces of Corningware are more likely to contain lead, and their condition may be compromised due to wear and tear over the years. Additionally, using vintage Corningware to cook acidic or …Corningware is a brand of glass-ceramic cookware that is known for its durability and versatility. According to the company, Corningware is lead-free because it is made of Pyroceram, a patented glass-ceramic material that does not contain lead or any other toxic chemicals. This claim is supported by independent testing, which has confirmed that ... Does vintage corningware contain lead, Light or milky white color. Smooth, easy to wash surface. Incredible hardness. Beneficial, non-toxic content. Bone ash in the china composition is beneficial for human health. It makes your dinnerware stronger and brighter. Decorations and glaze might be hazardous. Plain white dishes are non-toxic., Vintage dishware, ceramic items, silverware, jewelry, toys and furniture are also more likely to contain lead. But there isn't a reliable way for a person to assess whether an older object is a ..., Tagged: Glass, Old. Unlike crystal, Pyrex should have less than 0.1 part per million (or 1 in 10 million) of lead. …. So there should be no worry about lead. However, consumers should focus more on the lid to make sure it is BPA free, especially many consumers microwave food with the lid on., Consider purchasing vintage or antique dinnerware: Vintage or antique dinnerware may contain lead, but the amount of lead may be less than that found in modern-day dinnerware. However, it is important to be cautious when using vintage or antique dishes and to avoid using them for food storage or for hot foods and liquids., RARE Vintage Corning Ware Blue Cornflower 11 Inch P-16-B Casserole With Lid Made in U.S.A. This wonderful dish measures 11 inches by 11 inches, with a bottom stamp that reads "Corning Ware 11 IN P-16-B Made in U.S.A." This piece is in wonderful condition, it does have a few surface small scratches with a little yellow staining near the scratches., A lot of Pyrex and Corelle collectors will be surprised to know some of their vintage pieces contain very high levels of lead, primarily on the decorative pattern elements. I'm not talking about levels that are marginally over what's considered safe, I'm talking way over the top levels of lead., The chemical formula for lead(IV) nitrite is Pb(NO2)4. Lead(IV) nitrite is also known as plumbic nitrite. One molecule of lead(IV) nitrite contains one atom of lead, represented by..., Tagged: Glass, Old. Unlike crystal, Pyrex should have less than 0.1 part per million (or 1 in 10 million) of lead. …. So there should be no worry about lead. However, consumers should focus more on the lid to make sure it is BPA free, especially many consumers microwave food with the lid on., Many of the vintage Corningware casserole dishes like this (specifically the ones with this blue cornflower pattern) that I have tested have been negative for Lead in the exterior painted decorative (blue) markings, but NOT all of them., Published: November 25, 2020 Updated: November 26, 2023 Section #3) Some Background. Members of the Lead Safe Mama team have been doing consumer goods testing using an XRF instrument since 2009 – and vintage Fisher-Price toys were among the very first toys we tested and found to be toxic (likely unsafe for children) due to the …, CorningWare is made of a type of porcelain that is known as "fire-ceramic.". It is a non-toxic, white, translucent material that is fired at a high temperature to make it durable and chip-resistant. The material was developed by Corning Inc. in the 1950s and has been used to make cookware, bakeware, and other household items ever since., A PYREX measuring cup manufactured 1980, featuring graduations in both metric and U.S. customary systems. Pyrex (trademarked as PYREX and pyrex) is a brand introduced by Corning Inc. in 1915 for a line of clear, low-thermal-expansion borosilicate glass used for laboratory glassware and kitchenware.It was later expanded in the 1930s to include kitchenware products made of soda-lime glass and ..., Lead is not the only issue in terms of dinnerware, when searching for non-toxic dinnerware options, this is what Mamavation is avoiding for you: Cadmium. Lead. Bisphenol A (BPA) & Bisphenol S (BPS) Polyvinyl chloride (PVC) Per- and Polyfluoroalkyl Substances (PFAS) "Forever Chemicals". Phthalates., China, Mexico, AND ITALY continue to use lead. Hand-decorated china is more likely to contain lead. (Say no to all that studio "I love Grandma" ware) Don't use for food or drink: All pottery items Any item thats original glaze has crackled or has cracks. It's the release of lead, a leaching process, in ALL Dinnerware that can be mitigated., You can quickly determine if the Corelle county cottage has lead by using the XRF instrument, a lead test kit, or asking the manufacturer if the Corelle dish meets Proposition 65 standards. Furthermore, since the mid-2000s, all Corelle items have been lead-free. Corelle encourages using these patterns as ornamental pieces., Please stop using vintage Pyrex glassware for cooking & serving food — it's often coated with high-Lead paint & can test positive for Cadmium, Arsenic. Newer Pyrex (Made in Germany) No. 1399 labware glass "water bottle": 19,200 ppm Lead in the white painted markings on the outside of the bottle ... Read More about PYREX vs. pyrex, Lead ..., Does vintage CorningWare contain lead? The actual dishes do not contain lead, but the paint on almost all vintage items can contain lead. Vintage bowls and baking dishes have been found to test positive for lead. The readings can be between 15,000 and 100,000 PPM (parts per million) of lead., Via/ eBay. Rubin’s test of a vintage Corningware casserole dish in the Spice of Life pattern (1970s/80s) revealed 26,500 ppm of lead and some cadmium. Though this was on the outside decoration, she cautions that …, The glass-ceramic material used to create VISIONS does not include lead or similar harmful metals as an ingredient. ... and prospective users of VISION(S) Cookware. While the focus is on vintage cooking vessels created by Corning (from the late 1970’s through the early 2000’s), newer Visions products as sold by World Kitchen/Corelle …, Testing for lead on vintage Corningware products will likely detect around 15,000 - 100,000 PPM lead, but it's mostly on the outer surface that's been painted on. However, such rates of lead are still deemed hazardous to your health., For those new to this website: Tamara Rubin is a multiple-federal-award-winning independent advocate for childhood Lead poisoning prevention and consumer goods safety, and a documentary filmmaker. She is also a mother of Lead-poisoned children (two of her sons were acutely Lead-poisoned in 2005). Since 2009, Tamara has been using XRF technology (a scientific method used ... Read More about ..., Hey there! As an Amazon Associate, I earn from qualifying purchases. I greatly appreciate your support!It wouldn’t matter how well designed a Corningware is, one thing paramount above all is if it is toxic-free. As people become more aware of toxic-free dishes, manufacturers are paying attention to..., However, there is something to be aware of when it comes to most vintage dishes and cookware, including Pyrex. It can contain lead. Sadly these fun colorful dishes were discounted in the 1980s. With more and more people starting to collect vintage Pyrex again it's important to know if they are actually safe to use., Older pieces of Corningware are more likely to contain lead, and their condition may be compromised due to wear and tear over the years. Additionally, using vintage Corningware to cook acidic or …, Does antique porcelain contain lead? Leaching lead from antique china may be toxic. This is the case with many pieces of antique and vintage china. Many of the old glazes used on antique or vintage china contain some level of lead. ... In general, new white Corelle, new Pyrex, Duralex, Libbey, and 100% stainless steel options are your best bet ..., Similar QuestionsIs there lead in milk glasDoes vintage Corelle have leaIs vintage corningware toxiHow do I know if my drinking glass has lead in iIs vintage glassware safIs vintage Pyrex lead freAsked By: Carter Rogers Date: created: Feb 26 2023Is there lead in milk glassAnswered By: Jeffery Miller Date: created: Mar 01 2023 - The... Read more », The interior is also non-porous, so it won't absorb stains or odors that can taint your food. However, some experts point out that the exterior of vintage items might contain a small amount of lead. Is CorningWare Microwave Durable? Yes. The ceramic glass in CorningWare will not break down and become soft in the microwave., Thank you for reading, following and sharing! Please ask questions if you have them! Tamara Rubin. Mother of Lead Poisoned Children. Trained and Certified in using an XRF instrument. « Vintage (1972-1988) Corning Ware Spice-o-Life Casserole: 21,800 ppm Lead., Apr 13, 2017 · Under-glaze (mostly blue-green) and in-glaze (paints contain no lead or few lead) products are relatively safe because decorations are covered with glaze and won’t leach easily. I can see a big difference of the decoration between the one with blue cornflower and the one with Country Festival (very colorful, two blue birds on two sides and ... , Published: December 30, 2016 Updated: November 23, 2023 – Thursday This is an ad-free article. To make a contribution to help us keep our most widely-read articles ad-free, click here. Thank you. How to choose a safer mixing bowl As many of Lead Safe Mama friends and readers know already most of the vintage dishware ... Read More about …, Tamara Rubin is a multiple-federal-award-winning independent advocate for childhood Lead poisoning prevention and consumer goods safety, and a documentary filmmaker. She is also a mother of Lead-poisoned children (two of her sons were acutely Lead-poisoned in 2005). Since 2009, Tamara has been using XRF technology (a scientific method used by ..., Nov. 13, 1991 12 AM PT. TIMES STAFF WRITER. SACRAMENTO —. In an action likely to raise concerns around dinner tables throughout California, the state attorney general joined an environmental ..., not intended to serve food; harmful; containing lead in the glaze. A yellow triangle should also warn you. So are the warning messages and labels. The absence of any label at all is a bad sign. It means, no authorities test the products, and you are to do it by yourself.