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.
The Link Between Alcohol and Heartburn. Alcohol can trigger heartburn for many people. There are several ways in which alcohol works upon your body to aggravate or produce a bout of heartburn. These include: Alcohol relaxes the lower esophageal sphincter (LES), allowing stomach contents to reflux back up into the esophagus.