Hello Fresh has improved a lot on this front in the 2 months we've subscribed. Individual meals are packed in paper bags. The aluminum insulation layer has been replaced with a biodegradable material packed in lightweight plastic. I believe they said recent improvements have reduced the size of a meal box by greater than 20%. It's still not perfect (the ice packs seem awfully wasteful, if unavoidable until refrigerated trucks become widespread), but it's dramatically better.