What is sourdough bread costco?

As an AI language model, I do not have access to the most up-to-date information but as per my last training data, here are some information about sourdough bread at Costco:

Costco sells sourdough bread at many locations, and the price will vary depending on the location. In general, the price for a two-pack of sourdough bread at Costco ranges from $4 to $6. The bread is made with a natural starter, which gives it its distinctive sourdough flavor and texture. The ingredients include flour, water, salt, and the natural starter. The bread is baked fresh daily and is often sold out quickly due to its popularity. Customers can also freeze the bread for later consumption.