Mainstays glasses, cups and mugs

3 reports to CPSC, the latest made Feb 6, 2026. A report isn’t a recall.

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

Watch and the shortlist are kept with a free account, on every device. Your watch list. CPSC’s own search is on saferproducts.gov.

At a glance

From SaferProducts.gov, released Oct 25, 2026.

3reports to CPSC
Feb 6, 2026the latest report was made
Dec 20, 2012the earliest
2with the company’s comments

Brand: Mainstays
Makers: Walmart Stores Inc. and Anchor Hocking, LLCMakers, importers or sellers, as the reports name them
Product: Glasses, cups and mugsCPSC’s product type: Drinking Glasses, cups, and mugs (code 478), in Kitchen: Cookware & Tableware

Other ways the reports write the brand (1)

“Mainstays [REDACTED]”

By month

1 report from March 2025 to February 2026; the most in February 2026, 1. 2 earlier reports, since December 2012, are in the table.

The numbers, as a table

Reports to CPSC by the month each was made, newest first
Month	Reports
February 2026	1
September 2019	1
December 2012	1

How badly anyone was hurt

First aid 1 CPSC: Injury, First Aid Received by Non-Medical Professional
No one hurt 2 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 Feb 6, 2026, sent to the company Feb 17, 2026, published by CPSC Mar 3, 2026

The product, in the report: Mainstays (brand) “Self-Warming Mug” model MS9299 Black sold by Walmart. [REDACTED]

Self-warming coffee mug sits on a charging base. The two contacts on the charging base get hot and melt the plastic base. I stopped using the mug but am concerned if someone left the mug sitting on the charging base it could start a fire.

Model
model MS9299 [REDACTED]
UPC
8 41351 19299 6
Serial number
none
Bought from
Walmart, California
Bought
Feb 2, 2026
Where
Guerneville, California: Home/Apartment/Condominium
Who was involved
Unknown
The reporter’s relation to them
Self
As this report names them
Brand Mainstays [REDACTED], made or sold by Walmart Stores Inc.
How badly, in CPSC’s words
Incident, No Injury

CPSC report 20260206-4F58B-2147323829. Submitter: Consumer Search for it on SaferProducts.gov
No one hurt
Made Sep 23, 2019, sent to the company Oct 9, 2019, published by CPSC Oct 24, 2019

The product, in the report: Skull sipper by Mainstays, purchased at Walmart.

While drinking out of a skull sipper cup from Walmart, the plastic straw splintered into my three year old’s mouth.

Model
M s 69 - 250 - 40202
Serial number
70457 2 98387
Bought from
Walmart, Georgia
Bought
Sep 20, 2019
Where
Marietta, Georgia: Home/Apartment/Condominium
Who was involved
Age 3, Unknown
The reporter’s relation to them
Unspecified
As this report names them
Brand Mainstays, made or sold by Walmart Stores Inc.
How badly, in CPSC’s words
Incident, No Injury

The company’s comments, in its own words

(10/10/2019) Walmart Stores Inc.: Please contact 1800-925-6278 and provide them with the details of the incident. Be sure to give them the model number or any other identifying number so that they can better assist you

CPSC report 20190923-724DA-2147377516. Submitter: Consumer Search for it on SaferProducts.gov
First aid
Made Dec 20, 2012, sent to the company Jan 9, 2013, published by CPSC Jan 31, 2013

The product, in the report: Mainstays brand 16 oz. large glass tumblers 4 pack

I purchased 2 sets of Mainstays brand drinking glasses. While washing one of the glasses, I sustained a deep cut extending from below my knuckle to my thumb. The glass is brand new and was not in any way broken. Once I got my injury taken care of, I inspected the glass carefully and noticed that the rim of the glass was jagged and poorly made. I was extremely upset that an unbroken, new product could cause this much damage and pain. I am taking the glassware back to Walmart where I purchased it and hope they do something about it.

UPC
7644095072
Bought from
Walmart, Virginia
Bought
Dec 19, 2012
Where
Unspecified: Home/Apartment/Condominium
Who was involved
Age 52, Female
The reporter’s relation to them
Self
As this report names them
Brand Mainstays, made or sold by Anchor Hocking, LLC
How badly, in CPSC’s words
Injury, First Aid Received by Non-Medical Professional

The company’s comments, in its own words

(1/15/2013) Anchor Hocking, LLC: This is a response on behalf of Anchor Hocking to CPSC consumer Report ID: 20121220-F7D57-2147460871, regarding a 16 oz. glass tumbler, which the consumer identified as being manufactured by Anchor Hocking. The consumer reported that glass broke while she was washing the glass. Anchor Hocking was sorry to learn that the consumer was injured, but was glad there were no injuries that required professional medical attention.
Based upon Anchor Hocking’s review of the proposed records, Anchor Hocking responds as follows:
Anchor Hocking is proud of the long-standing safety record of its products. In this case, Anchor Hocking has not had the opportunity to inspect the products 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 glass, Anchor Hocking is unable to identify whether the product involved in this incident is, in fact, an Anchor Hocking product. In addition, because the glasses were not provided, Anchor Hocking cannot perform an inspection as to any potential defect, for common misuse, or other cause of failure. Without an opportunity to review the product involved in the records disclosed, 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 or using improper cleaning materials or utensils. The consumer’s description of the glass breaking may indicate that improper external pressure was exerted on the glass. Anchor Hocking believes there is a chance misuse or mishandling caused or contributed to the alleged failure of the product.
The consumer noted she did not contact Anchor Hocking. If she wishes to do so, Anchor Hocking’s Consumer Affairs Department can be reached at consumer@anchorhocking.com or 1-800-562-7511 ext. 2478

CPSC report 20121220-F7D57-2147460871. 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.

Mainstays glasses, cups and mugs

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.

What needs attention is marked.

The public record comes first.