Is it safe to freeze soup and chili in glass jars?

[aruvqan]

@BeeGee

My grandmother used to use wax milk cartons. She’d cut the top off and then cut down about 2 inches on each corner creating flaps. She’d fill the carton within 1/2" of where the cuts stopped and fold the flaps over. Then she’d tape it up with masking tape. they made nice little cubes that stacked well. I don’t think it would be considered wise or efficient given the recent gains in plastic containers, but it’s an alternative.

I can remember waxed cardboard boxes for home freezing, mom used them back in the early 70s - just like the little BirdsEye veggie boxes. I could get behind a revival of these, they would degrade nicely in a landfill, or be fine for burning to start a fire in the woodstove.