I don't know why people have strong sparkling water preferences. HEB makes generic canned low-minerals sparkling water, and it's great because it has no flavor. Any purified water with gas should taste like that, but water companies add minerals to create a distinctive taste.
Anyone could analyze a Svalbarði bottle, and copy the mineral profile using purified tap water + salts + carbon dioxide. It's water.
Anyone could analyze a Svalbarði bottle, and copy the mineral profile using purified tap water + salts + carbon dioxide. It's water.