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Is Distilled Water Safe to Drink for Survival? | Survival Sullivan

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If you are dehydrated, clean water is clean water, but a common question I have seen popping up is concerning distilled water in a long-term survival situation, specifically consuming a lot of it over time or as a primary water source.

Distillation of water is a technology that has been around for ages, and largely perfected since about World War II, and is highly useful as a reliable way to render salt water and other contaminated water sources into highly pure, clean drinkable water.

But as science helps so too does it
scare: there are concerns that the lack of minerals and other trace
elements in distilled water, especially the super-pure distilled
water made possible by today’s distilling tech, is actually harmful
to your health, doing everything from depriving your body of needed
minerals to dangerously diluting your electrolyte and enzyme balances
over time! Yikes.

So in an effort to get to the bottom
of this puzzling and unusual question for the good of prepperdom, and
to pass judgment on the suitability of at-home water distillation
setups, I took a deep dive into the what and how of distilled water
and its suitability for drinking.

Read on to find out more.

What is Distilled Water?

For those of you who did not pay attention in middle school science classes or just never cared to know, distilled water is water that has simply been boiled to a vapor state, and then condensed into liquid in a separate container. The idea is that any materials in the water, impurities, that are non-volatile or have a boiling temperature above water will remain behind in the first vessel. Distillation is an old and highly reliable form of purification.

Making Distilled Water

Water distillation equipment is simple in theory: water is boiled in one vessel until it turns to steam, which then travels along a pipe or coil to another vessel where it condenses and turns into liquid once more.

More advanced variations on this equipment may flash-boil water to save fuel or increase speed, and some really advanced tech employs condensate collection in vacuum. Reverse osmosis systems, commonly abbreviated as ‘RO’, are employed increasingly for commercial and municipal settings. These systems produce astoundingly pure water and do so quickly.

At home or field-expedient
distillers may take the form of classic stills, or be more akin to
laboratory grade setups with glass piping and bottles with a water
supply heated by burner or element, but water can be distilled with
something as simple as a sheet of plastic over a container of water
that is heated by the sun’s rays.

While they vary in size, speed and amount of fuel used, all water distillation works on the same principals. Distillation of water for drinking has many advantages: it produces extraordinarily clear and clean potable water free from diseases, minerals, biological particulate and many chemicals. This is one surefire way (in most cases) to treat a water source of unknown or known-bad quality and produce clean water.

Water distillation requires little in the way of oversight in a small scale, essentially being set and forget so long as your heat source is capable of boiling water. This allows you to free up time for task-stacking or rest, knowing that so long as the “boiler” is hot, you will be producing clean water at a steady rate.

Here’s a quick video on how to make distilled water at home without the use of a distiller:

What is Distilled Water used for?

Distilled water is often used for
laboratory and industrial purposes for any task or process where
purity is a must. Water otherwise carries with it all kinds of
impurities, like minerals, many chemicals and biological matter.
These impurities may cause chemical reactions when water is used as a
solvent or in other processes, and so distillation is a reliable,
comparatively cheap way to get high purity water.

Distillation has also been used,
historically and today, to provide clean drinking water from all
kinds of sources. Seawater is one source that is commonly distilled
to remove salt and all the other impurities, and has been used on
ships and by militaries for drinking water when they have fixed or
mobile distillation plants or stills available.

Distilled water is highly useful for
creating solutions and in solvent applications where impurity could
compromise the intended effect of the mix, and is furthermore
certainly safe to drink, at least over a short period of time. We
know that, the question we need answered is how safe is it overall,
and especially over a longer time?

If all we have access to for safe
drinking water is distilled water for an indeterminate time, will
that star to cause us health problems? Is there anything we can do to
offset the mineral loss in the water?

Distilled Water for Drinking and
Health Effects

Disclaimer: the author is not a doctor. Neither the author nor www.survivalsullivan.com shall be held liable for any damage or side-effects as a result of using the advice in this article.

Distillation may not remove absolutely everything present in water, like things that have a boiling point equal to or lower than the water itself, but you can sure depend on it removing minerals.

Helpful minerals in water included, like calcium, magnesium iron and some zinc. While for civil and widespread humanitarian use for ocean-side cities or places with highly contaminated water sources this is of little concern, as engineered public water can have vital and healthy minerals added back in, this may be problematic for others who are not sourcing it “re-mineralized.”

While touted by some naturalists and
space-cadet healthfood types as the only kind of water you should be
drinking on this ruined earth, some major agencies have other
thoughts, namely a little group called the World Health Organization,
who extensively investigated the effects of demineralized water way
back in 1982.

Their research and experimentation
with distilled water showed some interesting results: for starters,
it will make you pee more. While not the worst thing in the world,
urination as a function is closely linked to kidney performance, and
anything that prompts your body to more readily discharge moisture
and other “supplies” should be noted.

WHO also found that, somewhat
concerning, distilled water eliminated electrolytes and diluted the
concentrations of vital serums in the body. While the results could
not be extrapolated for very long term consumption, the effects on
the body when exclusively consuming distilled water for a long period
of time are cause for some concern.

Water is not the primary source of intake for minerals like iron, calcium and magnesium, food is. But in an interesting twist distilled water, being demineralized, has been found to strip up to 60% of those minerals from food when it has been used to cook with!

That is a serious and significant loss of minerals from food, which are the most important source of mineral uptake for the body. Long term use of distilled water for cooking could definitely have deleterious effects on your vital mineral levels in the body.

It is easy to assume that your crisis will not last so long that this mineral depletion will be an issue, but that would be a mistake: your body is consuming minerals constantly, and you lose a significant amount of them through sweating.

So when you are busting your hump to survive, by building, running, fighting, digging, rucking or whatever, your body will be shedding salt, potassium and other minerals by the bucket full. Rehydrating with distilled water will not replace those minerals. Not good.

Lest you take this as some admonishment to take a vitamin and call it good, you should know that correct mineral levels and replenishment is vital to good health, with many of the most common minerals found in water and food (and subsequently stripped by distilled water) are vital for cellular membrane health, electrolyte balance, metabolic function, hormone function and even oxygen use.

Deficiency in any essential nutrient will sap your strength, hurt your health and, most seriously, weaken your immune system drastically.

In short, if at all possible try to
avoid the long term use of distilled water as your primary source for
drinking and cooking if you have other options. The resulting loss of
minerals in your body over time may cause health issues or exacerbate
existing ones.

To Sum Up…

Natural mineral concentrations in
water are important for the health of all organic life in their
native environments. While this is not to say that missing minerals
cannot be had through food or supplemental means, it does affect
how your body can make use of the water it ingests. Something to keep
in mind if you plan to go 100% distilled water as part of your SHTF
plan.

Bottom line: Distilled water is safe to drink and a vital source of water in the short to intermediate term, but its effects on humans when consumed exclusively for long term use are still not 100% understood. It does show a few troubling effects that you should be aware of, especially when used for cooking.

If in a survival situation with a
worrisome source of water, distillation will remove more contaminants
that any other method purification with very few exceptions, so if
you have time and opportunity it is an invaluable method for
purifying suspect water. Drink with no concerns. If you plan to rely
on it 100% for very long term use, you should consult a physician who
understands the subject so you know what you’ll be facing and any
potential countermeasures,

Don’t get fussy and throw the baby
out with the distilled bath water; learn what distilled water can do
for you, and make use of it. But be cautious if you plan on drinking
it or cooking with it for a long time.

At Home Water Distillers

The following are a few options for
at-home production of distilled water. These solutions all require
various amounts of time and setup, but might be worth it for those of
you who want to be able to make your own instead of hauling home
gallon jugs from the grocery store.

This is the Cadillac of at-home
countertop distillation. This unit is U.S. manufactured and promises
that at no time does the water produced come into contact with
plastic. It is heavy, and dang pricey at about $600 bucks, but its
quality is second to none and it is scarcely bigger than a coffee
maker.

A cheaper model and one of the most
popular, H20 Labs offering is convenient and produces a gallon of
distilled water in about 5 hours. Beware, as some users report issues
with a metallic taste, and H20 labs offers activated charcoal filters
to “further improve” taste, lending these complaints credence.
Nevertheless, a well known and well liked product all the same.

Waterwise’s newest model and the replacement to their popular long runner the 8800, this is the at-home distiller for those who want convenience. The 3200 is among the fastest in its class, cranking out a gallon of distilled water in about 4 hours, a significant time saving over competitors. Complete with a pause and pour option just like your coffee maker, this is among the easiest models to use.

You can find even more suggestions for a water distiller here.

Distilled water is absolutely safe to drink and a highly reliable option for producing potable drinking water from suspect sources in short or medium term situations. However, it may present some health issues if consumed exclusively for a long time.

The minerals that naturally occur in most drinking water sources, even ones filtered or cleaned by other methods, are valuable to your health and important for usual bodily processes. Make sure you take that in to account before counting on distilled water long term.

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