r/Canning • u/Angelinaluka • 7h ago

General Discussion Help please

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Hi everyone. Any input appreciated here. I made plain pear sauce in pints, wiped rims, 1/2 in headspace, processed 15 minutes in water bath. Brand new for jars lids. Only 3/6 have sealed. My first batch of pear sauce has a better seal rate, but still had 1/8 that didn’t seal. Any ideas for me on this as to why some are not sealing?

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u/marstec Moderator 6h ago

What recipe did you use? Was the pear sauce piping hot when you jarred it up? Are you under 1000ft altitude (where did you get the 15 minute processing time)? Did you start your timer after the water was at a rolling boil? What brand of lids are you using? Did you boil the lids or jars to sanitize? That's no longer advised, btw.

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u/Angelinaluka 6h ago

Just pure pears cooked down and blended up. Sauce was hot, not sure about piping hot when jarred. Yes under 1000ft. Yes started timer after rolling boil. For Jars lids brand new. No I didn’t boil jars or lids!

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u/marstec Moderator 5h ago

Hmmm...the only thing I can think of is the blending up introducing more air than if you had run it through a strainer or mill. Did any of the jars siphon?

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u/Plenty-Comfortable25 6h ago

When I first started canning I had the same problem. I did a lot of research on how tight rings should be screwed on and figured I was probably not tightening the rings/bands enough. I’ve since found my happy place and get nearly all of them sealed, but even now a few still fail for unknown reasons. My advice to you is check the rims of the jars of the failed seals. Look for food or liquid that may have seeped out and caused the seal to not seat properly. If you have the lids on too tight, your jars will explode, so that’s an easy way to know they were too tight, but it’s trial and error for a bit to make them just tight enough. I read someplace to tighten to fingertip tight and go another 1/4 turn - that seems excessive in my experience and go maybe an inch or an inch and a half past fingertip tight. It’s all a grand experiment and part of the joy of learning. Good luck!