The USDA says you can’t home can chocolate due to the low acidity, but you can add cocoa to home canned fruit toppings - Ball’s Chocolate Raspberry Sundae Topper http://www.freshpreserving.com/recipe.aspx?r=127 . Of course, making chocolate syrup (cocoa, water, sugar, vanilla, salt) is a no brainer from your food preps. Or just stock up on Hershey’s Chocolate Syrup. No, it’s not a candy bar but can certainly help for that chocolate fix.
Be careful vacuum sealing sharp objects like needles in a plastic bag as they will poke holes and you’ll have lost your seal. Wrap such items or put them into a container to protect the plastic bag.
Just wondering, why are you vacuum sealing needles?
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