I cannot tell you how happy it makes me to see more and more people learning to can food at home. I have noticed, though, that many newbies proudly showing off their work online are making some mistakes. Totally normal! None of us knows everything about canning when we first start out. But one mistake I see a lot is ignoring headspace.
Why getting the correct headspace is vital to making safe home canned foods, plus tips on measuring headspace correctly.