If you prefer, you can use bottled water in place of the filtered tap water.
You can find epsom salts at most grocery and drug stores. In the United States, be sure to use epsom salts that are marked as “USP” grade. They have tested by the FDA and are considered safe for human consumption.
Potassium bicarbonate is often used to keep wine from being too acidic so they aren’t too tart. You can usually purchase it from stores and online retailers that sell winemaking supplies.
Not all mineral waters are carbonated. If you prefer flat mineral water, pour it into any airtight container that you like.
Epsom salts are also known as magnesium sulfate. They are often used for medicinal purposes, such as soaking sore muscles, so you can find them at most grocery and drug stores.
Calcium chloride is often used as a preservative for canned foods. You can usually purchase it from stores or online retailers that sell canning and food preservation supplies.
