Hi all. First off, HAPPY MOTHER'S DAY to all the moms out there - including Mother Nature and all the squirrel mom's on this forum. Quick question - how long do Henry's bites last in the freezer? The shipping costs add up when I only buy one bag at a time so I'm considering stocking up a bit but at the same time I don't want to feed bites that are no longer good. Thanks in advance for any feedback