On Tue, 6 Oct 2020 18:59:27 -0600, Graham > wrote:

>On Tue, 6 Oct 2020 16:49:01 -0500, Sqwertz wrote:
>
>> On Tue, 6 Oct 2020 15:37:30 -0600, Graham wrote:
>>
>>> 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.
>>
>> Jane Grigson, really? I got a boo by here right here. It's kinda
>> oddly written: Charcuterie and French Pork Cookery.
>>
>> -sw
>
>I can't remember where I read that but it was a sort of "off the cuff"
>comment that she made and everyone followed it without question, usually
>not even knowing its source.
>It became one of those "shouldisms" like the "8 cups of water per day"
>myth.

There's plenty of info on the net about discarding dead bivalves.
https://www.quora.com/Is-it-true-tha...-eat-If-so-why