For people with sensitive stomachs, the Hourglass Coffee Brew is for you.
While it takes a bit longer than conventional coffee makers, it creates coffee in a way that is far less acidic and ultimately more gentle on your stomach.
Electricity is not needed to use the Hourglass Coffee Brew. Simply fill the water chamber, add the ground coffee and allow it to steep for 12 hours.
The final product can be mixed with milk or sugar and served hot or cold.
It is also reasonably priced at under $100.