By varying the proportions of copper and zinc, the properties of the brass can be changed, allowing hard and soft brasses. The density of brass is approximately .303 lb/cubic inch, 8.4 to 8.73 grams per cubic centimetre.
Both caffeinated and decaffeinated coffee might cause heartburn by encouraging acid production. Other caffeinated drinks, citrus fruit juices, tomato juice and carbonated beverages might trigger your heartburn. Citrus fruit juices include orange, grapefruit, lemon and pineapple. In some cases, these drinks might not cause symptoms because triggers depend on each person.
He always took what he called a gin fiz. He mixed 1 tablespoon of apple cider vinegar with a little sugar and added water to make the glass about half full. He then added a little baking soda and drank it while it was fizzing. Recently, I tried this for severe heartburn, and it does work--within a minute or so.