Je sais pas si je suis la seule à ne pas savoir mais de post en post
j'ai appris que depuis quelque temps les couvercles métalliques de Ball et Bernardin étaient sans BPA. Super!!
Pour différencier les Bernardin: http://locaphile.wordpress.com/2013/05/23/new-bpa-free-canning-lids-from-bernardin-canada/
Pour différencier les Ball: http://diaryofatomato.com/2013/05/22/mastering-food-preservation-balls-bpa-free-canning-lids/
Mais ensuite j'ai découvert ce blogue http://livinghomegrown.com/2014/08/changes-in-canning-lid-procedures.html qui m'a surpris au plus au point concernant ces couvercles dont le caoutchouc est fait d'une autre matière qu'avant.
"The New Recommendation:
Jarden no longer recommends that we heat the canning lids in hot water before canning.
NOT AT ALL.
Instead, we just wash the lids and use them at room temperature.
Now, just to be clear the Jarden Company changed THEIR recommendations. There have been no changes to the USDA recommendations of 2009. All is the same there and they teach Master Food Preservers to “follow the manufacturer’s instructions” for preparing the jar lids.
Why The Change?
Last year, I mentioned over on my other canning blog for our PBS garden TV show, Growing A Greener World, that the Ball Canning lids are now being made BPA free.
So that is not new news. But what is new is the way we use them.
According to the Jarden company, those new BPA free lids also have a new gasket material. They made the change in the recommended procedure because the new gasket on those new lids is plastisol.
If the new lid is heated in simmering water, it can easily be heated too much or for too long causing the plastisol to thin out. If that happens, you either get a poor seal (that fails later on the pantry shelf) or no seal at all.
So, they now recommend that we only wash the lids and don’t simmer them.
Some of you have already written to me pointing out that you have boxes that say, “BPA free” and the instructions say to simmer the lids."
En gros ca dit qu'on aurait plus à plonger le couvercle
dans l'eau chaude, mais seulement de les laver. Par contre sur les emballages la recommandation ne serait pas encore changé. Ouf, bonne chance les ami(e)s. On va finir par s'y perdre avec toutes ces procédures. Les anciens, les nouveaux, les " anciens et les nouveaux Tattler....
viewtopic.php?f=61&t=2355&p=42881#p42881
Bon cannage!