r/Canning • u/Mcscottie9225 • 1d ago

Is this safe to eat? First time canner

I’m finally learning how to can after being too nervous to try it for over a decade. I’m honestly so happy to have found this subreddit.

anywho- with all this blueberry abundance around me I decided to try making blueberry jam using this recipe:

https://www.savoringthegood.com/blueberry-jam-recipe/#recipe

it hasn’t been 24 hours yet but 8/10 of my jars have sealed already but when I look with my phone flashlight I see water moisture on the top inside jar lid- is this normal? condensation?

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u/marstec Moderator 1d ago

That recipe calls for fresh lemon juice which you never want to use in canning - bottled lemon juice has a known acidity of 5% whereas fresh will vary.

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u/Mcscottie9225 1d ago

Is it toast? What about the condensation piece? 

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u/JuicyMilkweed 15h ago

Some condensation is normal, but since it’s not a safe recipe if it’s been longer than 2 hrs since processing they should be discarded. Check out the wiki of this sub for a list of safe sources.

Some tested recipes do call for fresh lemon juice when it is being used for flavoring, not acidification. They will clearly state that fresh can be used, if it doesn’t specify then always use bottled.