A geologist did the unthinkable when she took a sip of water that was billions of years old to see how it tasted.

That’s right, forget your filtered water, double filtered and whatever other trendy water there is out there… there’s ancient water right beneath us all.

Obviously, us normies don’t have access to it and if we did, there’s not much of a chance we’d even consider drinking it.

Think about it, there’s bacteria, microbes, and it could even be stagnant.

But in 2013, when scientists from the University of Toronto found water just over 1.5 miles beneath Earth’s surface, they were quick to test it.

This isolated water had been untouched by the outside world for millennia in Timmins, Ontario, Canada.

After taking a peek at how old it could be, their data concluded that it was somewhere between 1.5 billion and 2.6 billion years old, making it the world’s oldest water known to man.

However, Professor Barbara Sherwood Lollar took it one step further – as lead researcher, she decided that she would be the one to bite the bullet and take a sip.

According to Lollar, it tasted ‘terrible’.

Speaking to the LA Times, the geologist remembered it for its saltiness.

She said: “Because of the reactions between the water and the rock, it is extremely salty. It is more viscous than tap water. It has the consistency of a very light maple syrup.

“It doesn’t have color when it comes out, but as soon as it comes into contact with oxygen it turns an orangy color because the minerals in it begin to form — especially the iron.”

Even stranger, she went on to admit that she has ‘tasted it from time to time’, which means she willingly drank it more than once. Yuck.

And her reasoning?

“We are interested in the saltiest waters because they are the oldest, and tasting is the quick-and-dirty way to find which are the most salty.”

Little did she know that just three years later in the same mine, her team would find even older water.