expired water

Vodka in a water bottle.

Expired Almond Water is one of the variants of Almond Water in the Backrooms. It is Almond Water that has expired. It looks like normal Almond Water, but it "has green, blue, or white mold floating inside the bottle." "It smells like rotten milk with a hint of cheese" (The Backrooms Wiki)

Backrooms Wiki says it can cause

"Flu-like conditions;

Weakness in muscles, bones, and cartilage;

Abdominal Aortic Aneurysm;

Loss of Memory;

Insomnia;

General Internal Bleeding."
The wiki also says "Causes of death have also been reported due to the other symptoms."

Although Almond Water can expire, Almond Water in the Backrooms seem to not usually expire and just found in the expired form.