Baking Soda. An old folk remedy for acid reflux is baking soda. HeartburnRelief.com suggests mixing 1 tsp. of baking soda with 1 cup of warm water to help reduce the burning sensation.However, make sure that the baking soda is dissolved before drinking the solution.lthough the baking soda may reduce acidity and reflux, it can lead to some undesirable side effects, including stomach gas, which causes an increase in belching, cautions Heartburn-Remedies.org. The extra stomach gas can also result in abdominal distention, discomfort and even pain.