Julie Bove wrote:
>
> "Mike_Duffy" > wrote in message
> ...
>> On Sat, 17 Mar 2018 22:02:39 -0700, Julie Bove wrote:
>>
>>> Both jars [...] deteriorated [...] black, crusty chunks
>>> Has anyone else ever had jars that did this?
>>
>> Yes. Most likely the crud did not actually make the salsa dangerous, but
>> tossing it was the correct response when one considers all the bother &
>> suffering of just a small chance of food poisoning.
>>
>> I have found this to be more common with the 'Mason' lids (two pieces;
>> flat
>> disk rubberized on downward food side + cylindrical threaded portion with
>> interior shoulder to hold down the disc component). I suspect that
>> one-piece lids can be tightened more reliably by automated equipment.
>
> These were one piece but it looked like they were deteriorating on the
> inside.

You can still feed it to the gardener. He won't notice, and it's
probably safe