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Drinking Heavy Water

Cody'sLab · 2.9M views · 2016-12-22 · 13:38

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Overview

Cody's Lab obtains pure heavy water (D2O) and drinks it as a taste test, reporting its flavor and feel. It is a short self-experiment.

On Hacker News

HN cites it as a first-hand account of how heavy water tastes, reportedly slightly sweet with an aftertaste.

Discussed on HN; no positive recommendation is recorded in this export · HN mentions 2017–2024

Topics

ChemistryEveryday physics & science demos
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heavy waterdeuteriumtaste testself-experiment

What people said

nayuki · 2024-04 · Reference

> Any water you drink is already very much hypotonic relative to your bodily fluids. True. The saline solution used for blood injections has 9000 ppm of dissolved solids. Whereas tap water above even ~200 ppm tastes disgusting to me. > I drank quite a bit of DI water in grad school Nice... but I wonder if it's considered food-grade, and if there are any non-ionic / non-polar impurities in it. > Also, heavy water (D2O) tastes sweet. I find that plain distilled water tastes sweet too. I can't afford heavy water, but this YouTuber did: [VIDEO] . > it also won’t kill you when consumed Deuterium oxide will kill you only after deuterium replaces a significant portion of all your body's hydrogen atoms, like maybe 50+%. [LINK]

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tsovlerg · 2021-04 · Reference

Cody's Lab - heavy water taste test: [VIDEO] TLDR - sweet, has an aftertaste, feels cold on the lips (compared to regular water)

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mullikine · 2018-09 · Joke / meme

We must message Cody to ask him to please make and consume some dry water, for our sakes. As he has already done with heavy water, last year... [VIDEO]

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Sources

Video by Cody'sLab, played through YouTube.

Data and selection notes

HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.

HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

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