I should save more of my veggie juices. I always do if I have extra chicken or beef broth.
I do save my fruit juices and either drink them. They can also be used as the liquid for jello or jello salads.
This is what I usually do--Quite often in an ice cream bucket rather than a bag.
I've never had a problem with this. But that doesn't mean I won't have a problem sometimes. Quite often, I'm not as careful as I should be. I've pulled them out when we start are 1st plantings (early spring cool...