Waterbath sealing a jar of jam that has 1.5" headspace left?
I've never had this happen! My final jar of cherry-cardamom jam came up just short and has about an inch and a half of head space. Can I waterbath seal it safely, or should I just put this one in the fridge?
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Happens to me every time.
Stick it in the fridge and use it first. Too much air can lead to oxidization / discoloring and the jar might not seal properly with the extra space.