What is baking soda costco?

As an AI language model, I don't have access to current prices as they may vary depending on the location, but I can provide some general information about baking soda at Costco:

• Costco carries a Kirkland Signature brand of baking soda, which comes in a large bag or a box with multiple smaller bags.
• Baking soda is often sold in bulk, which makes it more cost-effective than buying smaller packages at a regular grocery store.
• Costco may offer occasional deals or discounts on baking soda or other baking ingredients.
• Baking soda can serve many purposes, not just for baking, such as cleaning, deodorizing, or pest control. Therefore, buying it in larger quantities may make sense for some households.