Picking at least 4 years..

https://www.lifestyleblock.co.nz/forum/the-cooks-garden-kitchen/12133-what-s-for-dinner-in-your-house?start=6450#493016 

80c a can speaks of end of line back then? :)

We used to buy Oak Baked Beans in Ham Sauce. They were made in Australia.

http://www.heinzwatties.co.nz/About-Us/Got-a-question

 

 

• How long do canned foods retain their taste, goodness and nutritional value?

•  

  When stored in a cool, dry place, canned foods retain their taste, goodness and nutritional value for two to three years.

   

Hammerer:

We used to buy Oak Baked Beans in Ham Sauce. They were made in Australia.

http://www.heinzwatties.co.nz/About-Us/Got-a-question

• How long do canned foods retain their taste, goodness and nutritional value?


• 
  

  When stored in a cool, dry place, canned foods retain their taste, goodness and nutritional value for two to three years.

  
  

freitasm:

 

Are MPI coming to collect it? If yes, don't worry about Countdown but do take some photos and contact the food company directly.

 

They are going to get in touch with me tonight or tomorrow. In view of the time, probably tomorrow. I guess then they will decide if it's worth pursuing.

Bung:

Rikkitic:

 

The exploding and bulging tins are all Oak Baked Beans in Ham Sauce.

 

There is a code number stamped on the bottoms but no information on the labels about expiry date or batch number.

 

That's a mystery. I can't find any reference to Oak baked beans in anything other than tomato sauce. That could mean they are very old or were a short lived experiment. Oak is not a "house" brand it is part of the Heinz Wattie empire.

I just assumed they were a house brand because they are cheaper. If they are from Heinz Wattie they certainly shouldn't be blowing up in my face, let alone killing people with botulism (if that's what it is).

Oblivian:

 

Picking at least 4 years..

 

https://www.lifestyleblock.co.nz/forum/the-cooks-garden-kitchen/12133-what-s-for-dinner-in-your-house?start=6450#493016 

 

80c a can speaks of end of line back then? :)

 

Possible for one or two but I don't think so for all of them. In any case, I have heard of tinned food, usually beans, still being edible after 10 years or even 100 years (I think there was some from early Antarctic expeditions). I can't believe that violent explosions are considered normal for them at any age.

Hammerer:

 

We used to buy Oak Baked Beans in Ham Sauce. They were made in Australia.

 

http://www.heinzwatties.co.nz/About-Us/Got-a-question

 

• How long do canned foods retain their taste, goodness and nutritional value?

•  

  When stored in a cool, dry place, canned foods retain their taste, goodness and nutritional value for two to three years.

   

 

They still are in Australia, if not New Zealand.

Rikkitic:

 

Oblivian:

 

Picking at least 4 years..

 

https://www.lifestyleblock.co.nz/forum/the-cooks-garden-kitchen/12133-what-s-for-dinner-in-your-house?start=6450#493016 

 

80c a can speaks of end of line back then? :)

 

 

Possible for one or two but I don't think so for all of them. In any case, I have heard of tinned food, usually beans, still being edible after 10 years or even 100 years (I think there was some from early Antarctic expeditions). I can't believe that violent explosions are considered normal for them at any age.

 

 

 

We found a can of watties baked beans under our house, which would have been there since the house was built in the 50's When we opened them, they looked okay, but wouldn't eat them.

We have had some cans leak, mainly tend to be canned fruit,  and leave permanent stains on the bottom of kitchen cabinets.  Also had some cans of coconut cream that had leaked, because about half of the contents had evaporated, and it was all hard inside and a bit of mould. Not sure if the canning process is as good as it once was.

I was in school Army Cadets in the late sixties, and when we went away on camp the tinned rations were date stamped as being from the early 1950s - i.e. Korean War vintage, so fifteen to twenty years old. They tasted as good / bad as any Army rations, and obviously nobody had any food safety concerns, feeding them to a bunch of High School age boys.
As someone who had survived English boarding school meals, I thought the Army rations were delicious: some of my school mates who had been brought up on Mum's cooking were not so keen. LOL

So there is definitely something badly wrong with your cans of exploding beans, Rikkitic

Batman: All this shows is that there were bacteria in the cans. Bacteria multiplies and from their metabolic by products gas were produced. When enough gas had been produced can explodes. Some bacteria produce more gas at a faster rate than others.

What kind of bacteria I don't know. Imagine an intruder got into your car and keeps farting.

Sounds like a scene from 'Final Destination', although you won. 

We've had wine bottles explode....

If those tins had peelable lids, they seal a LOT less efficiently than the other tins that don't. I expect over time air has got in to them which has allowed bacteria to grow and gas has formed and put pressure on everything and BOOM.

Glad you are ok.

sbiddle:

 

 Canned food does go off, and if they were any more than a few years old it could reasonably be expected.

 

Only for a given definition of "Go off" surely?

I don't think it could "reasonably" be expected in an explosive sense...

According to the last interaction I had with I think Watties, they deem food in (sealed) cans to last a LONG time past the date on the can, but suggested that rather than unsafe to eat, texture and flavour may degrade over time.

What has happened to the OP is completely different. Either Bacteria was introduced pre sealing of the can, or the integrity of the seal of the can has been compromised over time and air or bacteria has been introduced and over time it's filled with gas until the structural integrity of the can failed so it could release the pressure, and because cans are made of relatively solid things, the resulting breach of the metal would have been quite loud.