I am encountering a phenomenon that I am at a loss to explain. I am finding a distinct odour of garlic in ice cubes and drinking water in my home and at my work. I am wondering what the volatile chemicals in garlic are that might be similar to something in the water. It happens in two different cities a hundred miles apart (work and home), which rules out many theories. At home, it is occurs in ice cubes made from my ice maker. They have a very distinct garlic smell to them. This is not just me, others can smell it as well. It easily transfers. If I pick the ice up in my hands, even just tossing them into my glass, my hands will reek of garlic - enough for someone else to conclusively identify it as garlic by the smell on my hands alone. At my work, I notice it in the filtered water (one of those charcoal filtering systems), though there it is less pronounced. I can probably look for common causes or mundane connections myself. I'm curious about the chemical makeup of garlic, and if there might be something in the water that's similar.