I prefer to feed my dogs real food and these bags are great to prepare it for them in big batches when I have time available. Come feeding time I then just pull them out of the freezer and microwave and my husband or a pet sitter can also easily feed the dogs fresh food that way. I cook chicken, liver and rice, fill them into these bags and then add steamable frozen veggies from Aldi before I vaccum, seal and freeze. My only issue is that I need a lot of them and they are a bit pricey. I would also prefer 2 quart bags to fill food for 2 dogs into one bag but unfortunately they only come in one size.