How can you double your zip loc bags?
Heat up an old butter knife with a lighter and slice the bag in half (so that only one side has a zipper part) the hot knife cauterizes the edges of the two new bags. The cauterized edges are as strong as the factory sealed edges!
Heat up an old butter knife with a lighter and slice the bag in half, (so each side has a zipper part) the hot knife cauterizes the edges of the two new bags and the cauterized edges are as strong as the factory sealed edges!