Straw Mushroom in brine. This straw whole mushroom is ready to add in your soup or dishes. Many popular Thai soups are calling for this mushroom such as Tom Yum or Tom Kha soup, also in stir fried dishes and curry soups. Straw mushroom is plain and little crunchy texture. Ingredients: Straw mushrooms, water, salt. Net Weight: 15.0 oz. Drain weight 7.4 oz. Product of Thailand.