32
CPSC NEISS Data 2005–2024

Canning Jars

Twenty years of CPSC NEISS emergency-room records for this consumer product category, combined with demographic breakdowns, multi-year injury trends, and matching recall notices.

Containers & Packaging · CPSC Code 1136

Stable over 5 years

The verdict

Canning Jars carry a danger score of 32/100 (low risk), driven by roughly 1,791 ER-treated injuries a year that are roughly flat over the last five years.

32/100
danger score (low risk)
1,791
ER visits per year (avg)
1.5%
end in hospital admission
25-34
most-injured age group

Every figure is rendered from the CPSC NEISS record for product code 1136 - last data year 2024.

PlainSafety danger score

0/100100/10032/100
PlainSafety danger score

Source: CPSC NEISS danger-score model As of 2024

How this 32/100 score is built

The score is computed from four CPSC-derived factors for canning jars - no opinion, no editorializing:

  • Injury volume1,791 ER visits/yr
  • Severity (hospitalization rate)1.5%
  • Fatality rate0.00%
  • 5-year trend-7%

See the full methodology for the exact weighting of each factor.

What the CPSC Data Shows

Canning Jars (CPSC product code 1136, in the Containers & Packaging category) generate an estimated 1,791 emergency-room visits every year in the United States, adding up to roughly 35,822 ER-treated injuries across the 20-year span from 2005 to 2024. PlainSafety derives a danger score of 32/100 for this category (low risk), combining raw injury volume, demographic reach, severity of outcome, and multi-year trend. The five-year trajectory shows that injury counts are roughly flat over the last five years, with the busiest year on record being 2016 (2,875 estimated ER visits) and the quietest 2006 (461 estimated visits).

The single most common ER diagnosis for canning jars is laceration to the finger, accounting for approximately 8,251 visits across the 20-year NEISS window, followed by laceration to the hand (6,166 cases). The 25-34 age group absorbs the largest share of injuries, about 6,244 cases over the NEISS window, and females appear slightly more often than the opposite sex in that cohort. Severity outcomes from the NEISS disposition field show that 1.5% of ER visits involving this product end in hospital admission or transfer.

Beyond the hospital-sampled NEISS projections, this page also aggregates 12 consumer incident reports filed directly on SaferProducts.gov, plus 20 anonymized ER narratives - together forming a layered picture of how canning jars fail in real households. Every figure on this page comes from CPSC-published data: NEISS projects national estimates from a probability sample of about 100 U.S. hospital emergency departments, while SaferProducts.gov collects voluntary reports from consumers, manufacturers, and clinicians. The danger score, trend indicators, and demographic breakdowns update automatically when CPSC releases a new yearly NEISS file, which is why this page is dated 2024-12-31. For regulatory context, consult CPSC recall notices and the SaferProducts.gov public database linked below.

1,791
Injuries / Year
1.5%
Hospitalization Rate
0.00%
Fatality Rate

Annual Injury Estimates (2005–2024)

01K2K3K 20052008201120142017202020232024 2K
Estimated annual emergency-room visits for Canning Jars, CPSC NEISS

Source: CPSC NEISS national injury estimates As of 2024

Source: CPSC NEISS national estimates CPSC NEISS national estimates Injuries represent ER-treated cases only

Who Gets Injured?

Age Group Male Female Total
0-4 1,363 1,458 2,821
5-14 2,166 1,391 3,557
15-24 2,111 2,789 4,974
25-34 2,773 3,471 6,244
35-44 1,392 3,689 5,081
45-54 1,273 3,424 4,697
55-64 1,219 2,774 3,993
65-74 863 2,092 2,955
75+ 293 1,207 1,500

Most Common Injuries

Body Part Diagnosis Est. Injuries
Finger Laceration 8,251
Hand Laceration 6,166
Foot Laceration 3,095
Lower Arm Laceration 1,492
Foot Contusions, Abr. 1,172
Wrist Laceration 1,121
Toe Laceration 829
Lower Leg Laceration 623
Head Laceration 621
Ankle Laceration 532
Face Laceration 516
Head Internal Injury 485
Lower Arm Burn, Scald 464
Face Burn, Scald 399
Hand Burn, Scald 398

Severity Breakdown

Treated/examined And Released 97.6% (34,951)
Left Without Being Seen 0.8% (275)
Treated And Transferred 0.7% (252)
Treated And Admitted/hospitalized 0.7% (239)
Held For Observation 0.3% (109)

ER Visit Narratives

Real anonymized emergency room reports from the CPSC NEISS database.

Age 68 · Female · Face · Burn, Scald · 2024

68YOF PRESENTS WITH A BURN AND A FALL. PATIENT STATES SHE WAS CANNING TOMATOES AND PEPPERS YESTERDAY, WHEN A JAR EXPLODED, CAUSING HER TO SUSTAIN BURNS TO HER FACE WITH BLISTERING TO HER FOREHEAD, CHIN AND LEFT SIDE OF FACE. SHE ALSO REPORTS THAT YESTERDAY SHE WAS CLEANING, SHE FELL FROM A STEP STOOL, HITTING HER RIGHT ELBOW ON THE COUNTER AND LANDING ON HER LEFT KNEE AND HIP. DX: BURN FACE

Age 70 · Female · Lower Arm · Burns, Thermal · 2024

70YOF PT PRESENT WITH BURNS TO BILATERAL HANDS AND FOREARM WHILE CANNING AT HOME. DX: BURN OF FIRST DEGREE OF FOREARMS BOTH ARMS.

Age 20 · Female · Face · Burn, Scald · 2024

20YOF WAS MAKING SOUP AT HOME WHEN SHE PUT SOME BOILING WATER IN A MASON JAR THEN PUT THE LID ON IT AND IT EXPLODED ALL OVER HER RESULTING IN BURNS AND BLISTERS TO THE LEFT SIDE OF HER FACE. DX: BURN

Age 13 · Female · Hand · Laceration · 2024

13 YOF C/O INJ TO HAND WHEN A *** JAR SHATTERED WHILE HOLDING IT AT HOME DX LAC HAND

Age 38 · Female · Hand · Laceration · 2024

38YOF REPORTS WITH LACERATION TO HAND AFTER SLAMMING DOWN A *** JAR ON THE COUNTER AND IT BROKE. DX HAND LACERATION

Age 34 · Female · Hand · Burn, Scald · 2024

34 YOF WAS FILLING A GLASS *** WITH BOILING WATER AND THE GLASS EXPLODED IN HER HAND. DX: DEEP PARTIAL THICKNESS BURN BACK OF HAND, SUPERFICIAL LACERATION LEFT HAND.

Age 77 · Male · Finger · Laceration · 2024

77YOM TO ER FOR LEFT INDEX FINGER LACERATION AFTER TRYING TO OPEN AN OLD *** JAR 1 HR AGO DX LACERATION OF LEFT INDEX FINGER W/O FOREIN BODY PRESENCE

Age 36 · Female · Finger · Laceration · 2024

36YOF C/O LACERATION OF RIGHT MIDDLE FINGER S/P PT STATES SHE WAS SHAKING A *** JAR AND IT HIT THE COUNTER AND BROKE, LACERATING HER FINGER. DX: LACERATION OF RIGHT MIDDLE FINGER WITHOUT FOREIGN BODY

Age 14 · Female · Hand · Laceration · 2024

14YOF PT THROWING GLASSES OF WATER FROM *** JARS WITH FRIEND, WHEN GLASSES STRUCK ONE ANOTHER CAUSING DEEP LAC BETWEEN 1ST & 2ND DIGITS OF RT HAND DX: LAC

Age 26 · Male · Hand · Contusions, Abr. · 2024

26 YOM. RT HAND PAIN WHILE ATTEMPTING TO OPEN A JAR OF HONEY. DX: CONTUSION OF RT HAND

Age 19 · Male · Finger · Laceration · 2024

19YOM, ACCIDENTALLY CUT FINGER ON A BROKEN *** JAR DX: LACERATION OF RIGHT MIDDLE FINGER

Age 24 · Female · Finger · Avulsion · 2024

24YOF WITH CUTS TO RT HAND POINTER FINGER AND MIDDLE FINGER AFTER A *** JAR BROKE IN HER HAND, DX: AVULSED SKIN OF RT MIDDLE FINGER, LACERATION TO RT POINTER FINGER

Consumer Incident Reports

Reports filed by consumers on SaferProducts.gov.

9/5/2017 · Incident, No Injury · Hearthmark, LLC d/b/a Jarden Home Brands · Ohio

I have been a canner four thirty years with maybe a hands full of jars that didn't seal over those years, I purchased the ball canning lids this year and just about every jar has come unsealed after it was initially sealed for a week or two. I have lost over eight cases of vegetables, fruit and meats because of this. The lids are now thinner and made of poor quality, from a reputable company.

9/5/2017 · Incident, No Injury · Hearthmark, LLC d/b/a Jarden Home Brands · Nevada

Failure of ball/ kerr jar lids to seal properly. Company has recently changed the design of their jars and they are now unsafe. Jars lids fail to stay sealed. This puts consumers at risk for food poisoning/ botulism due to poorly designed lids. I had four jars out of a case that were not fit for use due to improper sealant and wrinkling of lid. I received another case with broken glass inside of new jars. Jars that have sealed come unsealed after a few days of canning. I have over 40 years of canning experience and never had a failed seal until the new lids were released.

9/5/2017 · Incident, No Injury · Ball corporation · Virginia

I use Ball/Kerr products for canning and have had issues with their new lids (flats) in staying sealed. I have followed all guidelines for canning and have had numerous lids come unsealed after they were canned for the appropriate time and sat cooled. Usually within 1-2 weeks it would come unsealed. This causes me great anxiety now wondering if the product I've always used is now going to cause me or my family illness. In addition the cost of product I've lost and the time and effort in canning the stuff.

9/2/2013 · Incident, No Injury · Walmart Stores Inc. · Utah

I made jelly and pickles using Mainstays canning lids from Walmart. The jelly did not seal. I reprocessed it with new lids. It did not seal. I reprocessed with [REDACTED] canning lids. It sealed. The lids on the pickles looked uneven and bent in places. When I opened the jar, they were only slightly sealed. I threw them out. Botulism kills people who eat improperly canned food. I returned the unused lids to Walmart and asked that they take the Mainstays off the shelf. The manager said that they are not responsible for manufacturer defects. They only sell the products and that I could address my concerns to the manufacturer. When I search for Mainstays online, I am directed to Walmart products. I have not been able to find a separate manufacturer. I did write my concerns to Walmart. In the meantime, I do not feel that these canning lids are safe for people to use.

9/1/2017 · Incident, No Injury · Hearthmark, LLC d/b/a Jarden Home Brands · Ohio

I have canned goods for the past 8 years and in those 8 years I have had maybe 8 jars unreal on the shelf. I have always used safe canning recipes, and have always used Ball jars and lids. This year Ball has come out with "new improved" 18 month lids. Since using the new lids I have had 15 out of 36 jars unseal on the shelf. To clarify the jars were sealed with the specifications of the label on the box. I processed the jars and they sealed, I waited 24 hrs to move them to the pantry shelf. Starting on day 3 the jars began to unseal themselves! Besides wasting my time, produce/meat, and money this is extremely unsafe! I contacted the company about the problem I (and 1000's of other canners) are having, and I received a generic response how it was my fault... according to them either my recipe, process method, or my handling of the jars was to blame. I used the ball blue book recipe and processed them as usual.

9/1/2011 · Incident, No Injury · TRAMONTINA USA, INC. · Virginia

I purchased a 12" porcelain enamel Tramontina skillet with a glass lid from WalMart in Mount Airy, NC. I had washed the lid and placed it in the dish drainer on the counter. When I removed something else from the dish drainer, the lid fell to the side about 2 to 3 inches and hit the window sill. The glass shattered. This was such a minor hit that I was shocked to see the lid break. Had it fallen to the floor I might have expected it. I feel this is an unsafe product. update: Here are pictures of the replacement lid that the manufacturer sent me. I have it on the pot. Also I am sending a picture of the dish drainer it was in when it fell and broke. The lid is tempered glass but to me should not have broken with such a minor hit. It was sitting in the back third of the drainer and when I removed another item, it fell and hit the wooden window sill and shattered.

8/6/2024 · Incident, No Injury · Lightcinnabar · Connecticut

Mason jars sold on Amazon and advertised as 'FREEZER SAFE' shattered in freezer, causing glass to be mixed with food. Dangerously sharp after shattering, removal from freezer caused risk of laceration.

8/19/2014 · Incident, No Injury · Walmart Stores Inc. · Missouri

Several complaints regarding "Mainstay Canning Jars" sold through Wal-Mart that break during tempering and processing. Lids also have crimp in them which does not allow proper processing and sealing causing product in jars to spoil

Showing 8 of 12 reports.

Product Recalls

Search for active and past recalls related to canning jars on the CPSC website.

Frequently Asked Questions

How dangerous are canning jars?

Based on 20 years of CPSC data, canning jars have a danger score of 32/100 (low risk). An estimated 1,791 ER-treated injuries occur annually in the U.S. related to this product category.

What are the most common injuries from canning jars?

The most common injury is laceration to the finger, accounting for approximately 8,251 injuries over 20 years.

Are injuries from canning jars increasing or decreasing?

Stable over 5 years.

Who is most at risk for canning jars injuries?

The 25-34 age group accounts for the most injuries, with approximately 6,244 cases recorded over 20 years. Females are more frequently injured in this age group.

What happens when someone is injured by canning jars?

Of all ER visits involving canning jars, approximately 1.5% result in hospital admission. The majority of patients (98.5%) are treated and released from the emergency department.

How can I report a safety problem with canning jars?

You can file a consumer incident report at SaferProducts.gov, the official CPSC reporting portal. Reports help the CPSC identify emerging hazards and trigger investigations or recalls. You can also call the CPSC hotline at 1-800-638-2772.

Safety Guides

What this means for you

Treat the 32/100 score as relative risk between products, not your personal odds of injury.

  • See where this category ranks against every other tracked product. Full rankings
  • Injuries cluster in the 25-34 age group, take extra care if that describes your household.
  • Check for active recalls on this product before you assume it is safe. CPSC recalls

NEISS estimates ER-treated injuries from a national probability sample of hospitals; they do not capture injuries treated elsewhere or not treated at all.

Data: CPSC National Electronic Injury Surveillance System (NEISS) 2005–2024 and SaferProducts.gov consumer incident reports. Injury estimates are based on a nationally representative probability sample of U.S. hospital emergency departments. This page is for informational purposes only and is not affiliated with the CPSC.