No. These are two very different products. A roasting bag is built to go into the oven and is a much thinner plastic. It is not meant to hold a large amount of liquid and will likely spring a leak, leaving you with liquid brine everywhere! Instead, be sure to purchase a brining bag. This is specifically built for large amounts of liquid and able to withstand the weight of a turkey. It is much thicker plastic and is much more durable.