Thanks all.

I've been doing some more reading on nitre and it's got me a bit concerned, maybe more than I need to be but I'm gonna re-bottle everything.

Here's what I plan to do...please weigh-in:

I'll draw out the clear syrup from jars leaving behind the 'settled' particles. I'll dispose of the settled stuff.

Will reheat sap to no more than 190. Will use new clean jars heated to 180 (I'll need to buy a new thermo to make sure I hit that temp and not go over). Will run reheated syrup through a coffee filter, making sure my syrup temp remains at 190, then place in jars. At these temps, should the sealer jar tops 'pop'?

Thanks again.