When I was volunteering with Food Not Bombs, we actually didn't dumpster much, there were an abundance of stores and suppliers willing to just give us what they

When I was volunteering with Food Not Bombs, we actually didn't dumpster much, there were an abundance of stores and suppliers willing to just give us what they were going to throw out if we could organize a collection time. We did occasionally dumpster also though, but Food Not Bombs groups have a loose guideline of serving vegan food, which is much less likely to go bad after a few hours of not being refrigerated (though the veganism is part of the ethics also)