On Tue, 6 Oct 2020 14:30:01 -0700, Taxed and Spent wrote:

> On 10/6/2020 2:13 PM, RichD wrote:
>> I read something a few month back, can't recall the source,
>> warning about tainted mussels.
>>
>> Said first, toss out any which open before cooking
>> (steaming). * Then, discard any which fail to open as
>> they ought, ~ 5 minutes.
>>
>> I don't get this. Isn't steam antiseptic? Are there microscopic
>> critters that would survive?
>>
>> --
>> Rich
>>
>
>
> microbes emit poisons which remain toxic despite heat treatment.

The instruction to toss those that fail to open is apparently wrong and it
was started by Jane Grigson back in the 60s. ISTR it was some research in
Australia that pooh-poohed the idea.