Farmette, as long as they are sealed they are fine. Leaching usually happens when the pressure isn't kept steady, when it fluctuates during processing, or when the pressure is allowed to go to high. I have a jiggle type canner, and if it is rockin it's socks off the pressure is too high and I am likely to have some loss from the jars. Adjusting the heat down, once the initial desired pressure is reached, to a temp that just keeps it jiggling gently helps prevent this. So does waiting the five minutes the directions tells you to once the pressure is down and the weight is removed before removing the lid and taking out the jars.
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