Anchor Ovenware kitchen mixing bowls, canisters or similar containers

1 report to CPSC, the latest made Sep 15, 2011. A report isn’t a recall.

Watch it to hear when CPSC publishes new reports about it. CPSC’s own search

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At a glance

From SaferProducts.gov, released Oct 25, 2026.

1report to CPSC
Sep 15, 2011the latest report was made
Sep 15, 2011the earliest
1with the company’s comments

Brand: Anchor Ovenware
Maker: Anchor Hocking, LLCMakers, importers or sellers, as the reports name them
Product: Kitchen mixing bowls, canisters or similar containersCPSC’s product type: Kitchen Mixing Bowls, Canisters or Similar Containers (code 435), in Kitchen: Cookware & Tableware

By month

1 report from October 2010 to September 2011; the most in September 2011, 1.

The numbers, as a table

Reports to CPSC by the month each was made, newest first
Month	Reports
September 2011	1

How badly anyone was hurt

No one hurt 1 CPSC: Incident, No Injury

As each report says it, in short words; CPSC’s own words are under each.

The reports, as CPSC published them

Reports people made to the U.S. Consumer Product Safety Commission. CPSC publishes each one after sending it to the company named, and doesn’t guarantee they’re accurate. A report isn’t a recall.

Each report is the words of the person who made it, as CPSC published them. The company’s comments, where CPSC published any, are set apart as the company’s own.

CPSC, SaferProducts.gov public database export. Released Oct 25, 2026. Updated daily.

No one hurt
Made Sep 15, 2011, sent to the company Oct 14, 2011, published by CPSC Oct 28, 2011

The product, in the report: 20 oz clear casserole dish used for microwaving (reheating) leftovers

Sitting at kitchen table and heard an explosion in a kitchen cupboard. Started investigating and found a glass bowl shattered in a kitchen cupboard. Immediately looked at open window and screen to see if stray bullet had come into house. (No bullet hole found in screen, window, or cupboard door). This bowl was the top bowl in a stack of three. The bowl immediately below it was of the same type and size. The bottom bowl was larger and held the other two bowls. In addition the bottom bowl contained the majority of the shards. The event was so unusual that I took pictures and a few days later posted them on facebook.
Looked at damage and determined that a glass bowl had shattered on the top shelf throwing sharp shards as far away as the bottom shelf. The bowl that shattered primary use was for heating materials in the microwave. This bowl hadn’t been used for a least a three days and sat undisturbed in the cupboard for that amount of time.
The cupboard was room temperature and is not heated or cooled. The dish was approximately 2 years old. (We have several that were purchased in the same time frame and had no evidence of damage prior to the explosion.) It was manufactured by Anchor Ovenware and is a 20oz Casserole dish.
After this event I remembered reading about breaking glassware somewhere. About a week later, I ran across the article in consumer’s reports. The article though dealt with breakage during use. This dish however was not in use and the noise was loud like an explosion.

Model
20 oz Casserole
Bought from
Hannaford or Walmart
Bought
Sep 1, 2009, about then
Where
Andover, Maine: Home/Apartment/Condominium
Who was involved
Age 52, Male
The reporter’s relation to them
Self
As this report names them
Brand Anchor Ovenware, made or sold by Anchor Hocking, LLC
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(10/26/2011) Anchor Hocking, LLC: Anchor Hocking’s comments regarding Report No. 20110915-110FF-2147475287:
Anchor Hocking is proud that its products have been a safe and reliable part of American kitchens for generations. In fact, with annual production of glass bakeware in excess of 30 million pieces, Anchor Hocking has a failure rate of less than two-thousandths of one percent (0.002%) when taking all consumer concerns of any kind into consideration. Anchor Hocking is proud that it has never had any of its products recalled by the Consumer Product Safety Commission.
This report to the CPSC involved a 20-ounce glass casserole dish, manufactured by Anchor Hocking. The consumer reported that while the dish was in a cupboard with the door closed, the dish shattered. Anchor Hocking was glad to learn that there were no injuries. We note that the consumer indicated that he did not plan to contact Anchor Hocking, but if he would like to do so, we encourage him to contact Anchor Hocking’s Consumer Affairs Department at consumer@anchorhocking.com or 1-800-562-7511, ext. 2478.
Anchor Hocking has not had the opportunity to inspect the product at issue in this report. Often, similar products manufactured by other entities are improperly identified as Anchor Hocking products. Without having the opportunity to inspect the dish, Anchor Hocking is unable to determine whether the product involved in this incident is, in fact, an Anchor Hocking product.
In addition, because the dish has not been provided, Anchor Hocking cannot do an inspection as to the cause of the failure. Without an opportunity to review the facts and products involved in the report, it is impossible to determine the cause of the alleged problem. In Anchor Hocking’s experience, consumer misuse, failure to follow the manufacturer’s instructions, and supplier mishandling are the causes of the overwhelming majority of glass product failures industry-wide. Examples of this type of mishandling are: hitting the glass on a counter or hard surface causing a chip to break off; using improper cleaning materials or utensils; using on a stovetop; placing a hot dish on a wet or cold surface; adding liquid to a hot dish; or using in a too-hot oven. Anchor Hocking believes there is a chance misuse or mishandling caused or contributed to the alleged failure of the product.
According to the consumer, the dish shattered into many pieces. There is an explanation for this method of failure. Anchor Hocking’s glass bakeware is subjected to a manufacturing process known as tempering or heat strengthening. Tempering is designed to strengthen glass against thermal shock and in the event of a failure to cause the products to fail safely by shattering in many smaller pieces that are unlikely to cause serious injury. The consumer’s report of a product shattering into many small pieces is actually an indication the product failed as it is designed to with tempered glass.
To warn the consumer of this potential, the care and use instructions for the bakeware state the following warning: “Failure to follow these warnings may cause the product to suddenly fracture into many small pieces, which could result in property damage or serious personal injury from cuts or burns. Scratches from certain cleaning materials and utensils can weaken bakeware causing unexpected breakage when exposed to sudden temperature change.”
Tempered soda-lime-silicate is stronger and more durable, breaks into relatively small pieces generally lacking sharp edges and shards when it does break, and is a more environmentally-friendly product. Tempered or heat-strengthened bakeware is similar, although not identical, to tempering of other glass products where safety is a concern such as automobile windows, sliding glass doors, shower doors, etc. The priority is to eliminate a severe cutting hazard if a break occurs. The alternative form of glass bakeware is made with borosilicate, which is significantly weaker against mechanical breakage (i.e., dropping or hitting hard or sharp objects) and when it does break, it breaks into larger pieces of very sharp glass creating a significant risk of severe cuts, punctures, etc. Another failure mode is thermal shock, which results from a significant and immediate temperature change. Consistent scientific testing for decades has established that tempered soda-lime-silicate and borosilicate glass perform, at least, equivalent in thermal shock resistance. Indeed, Anchor’s testing, when the decision was made to change from borosilicate to tempered soda-lime-silicate in the 1980s, demonstrated a 40% improvement in thermal shock resistance for Anchor’s tempered soda-lime-silicate glass compared to annealed borosilicate silicate glass bakeware.
Glass bakeware is not without limitations. While it is a healthier alternative to metal bakeware because no hazardous materials leach into the food, and cooks often prefer it because it helps retain moisture, like all glass, it can break. Manufacturers of glass bakeware, including Anchor, have studied and evaluated the safety of glass bakeware while considering the rigors of cooking. Mechanical breakage (i.e., dropping or hitting hard or sharp objects) is the most frequent failure mode by a significant margin. Accordingly, making the bakeware stronger and more durable against mechanical breakage is a priority. Likewise, having the bakeware break in a safer manner—i.e., relatively small pieces generally lacking sharp edges and shards—is a priority. Tempered soda-lime-silicate glass achieves these goals.
Pursuant to 16 CFR § 1102.12(c)(3), Anchor Hocking verifies that it has reviewed the report of harm and the comment related to the report of harm and that the information contained in the comment is true and accurate to the best of Anchor Hocking’s knowledge, information, and belief. Pursuant to 16 CFR § 1102.12(c)(4), Anchor Hocking requests that the Commission publish the comment in the Database, and consents to the publication of the comment in the Database.

CPSC report 20110915-110FF-2147475287. Submitter: Consumer Search for it on SaferProducts.gov

CPSC’s disclaimer

Disclaimer: CPSC does not guarantee the accuracy, completeness, or adequacy of the contents of the Publicly Available Consumer Product Safety Information Database on SaferProducts.gov, particularly with respect to information submitted by people outside of CPSC.

Word for word, from the disclaimer in CPSC’s export.

Sources

U.S. Consumer Product Safety Commission, SaferProducts.gov public database export.

Released Oct 25, 2026 and checked Oct 25, 2026. Updated daily. Public domain (U.S. Government work). CPSC asks to be credited, and that no endorsement be implied.

Reports of harm are from the U.S. Consumer Product Safety Commission (CPSC), on SaferProducts.gov. CPSC does not endorse Hearth Record.

Anchor Ovenware kitchen mixing bowls, canisters or similar containers

At a glance

By month

How badly anyone was hurt

The reports, as CPSC published them

CPSC’s disclaimer

Sources

How to read a record

Every fact names its source.

A number never stands alone.

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