On 5/25/2011 2:41 AM, Evelyn wrote:
> On Tue, 24 May 2011 21:15:03 -0700, "Julie Bove"
> > wrote:
>
>>
>> > wrote in message
>> ...
>>> I wonder if we have different canning methods here. I often find things in
>>> the back of the pantry I had forgotten about and have never seen a
>>> deterioration in canned foods.
>>
>> A while back I put a bunch of old canned things down the sink. I have been
>> more careful since then to check expiration dates and not buy too many
>> extras. Anyway... Most of the stuff looked fine when I tossed it. I
>> didn't taste anything. There were several cans of beans, some soup and I
>> can't remember what all else. It was mostly the tomato or tomato containing
>> things that didn't look right.
>>
>> We were just having a discussion on a couponing forum that the cans in this
>> country seem to get dented very easily of late. So there is some
>> difference. I just don't know what it is.
>
>
> When the cans are lined with white plastic the tomatoes seldom go bad.
> Years ago they didn't line the cans, and the acidity of the tomatoes
> would eat away at the sealed edges and the cans would go bad more
> often. Nowadays I never even see a can without that lining if the
> contents are acidic.
>
> Evelyn

that's the type of lining the tomato paste can had/has in it

it still went 'off'