Can Reverse Osmosis Make Better Coffee?

Can Reverse Osmosis Make Better Coffee? Can Reverse Osmosis Make Better Coffee?

Brewing coffee properly may be an art more than a science but what matters most is the type of water used to make it. The water you use can make a big difference as far as taste is concerned.

However, water alone cannot affect the overall taste of the coffee. The minerals contents and PH levels are what affects the taste.

That means you can buy an expensive cup of coffee, but if the water isn’t right, then the coffee may have an undesirable taste.

If you have high-quality drinking water that tastes good, it can make a decent cup of coffee as well. But if you don’t use good water, then you end up having a bad cup of coffee.

Far from that, let’s discuss whether reverse osmosis can make quality coffee or not? Reverse osmosis can make better coffee, and we shall discuss how that happens in detail.

How reverse osmosis works in coffee making


During reverse osmosis, all the minerals are removed from the water, reducing the PH levels substantially. When you make a cup of coffee using reverse osmosis, you remain with water that has a low PH level and no minerals.

Now, if you want to make a tasty cup of coffee, then you should get a filtration system that can help you achieve reverse osmosis.

Most people don’t know that tap water contains contaminants such as chlorine that affect the process of brewing coffee.

So, you need to find purified water and ensure it is free of chlorine, fluorine, and other minerals.

Unfortunately, the issue of reverse osmosis in coffee making is a popular topic of discussion online, and you can get confused quickly with all the information surrounding the case.

Some people argue that using mineral-free water can give the coffee a bland taste, but that doesn’t make any sense whatsoever. Let’s look at the issue this way to get a better understanding.

What is preferable, to drink contaminated tap water or drink purified water extracted through the reverse osmosis process?

The answer is straightforward! In terms of alkalinity, most people often use extra filtration to balance nutrient and water PH levels.

Also, many other elements usually decide the flavor of a coffee. The brewing, the fresh beans, and the system of making the coffee – all affect the taste of the coffee.

Can you make quality coffee by reverse osmosis?

There’s no real proof that reverse osmosis can help you brew better coffee. For starters, reverse osmosis removes the minerals that give coffee its unique taste and different flavor profiles.

While reverse osmosis allows you to produce water with remarkable purity, it can affect the coffee’s taste. The flavor of coffee is harnessed by the quantity of calcium and dissolved solids, as well as magnesium.

Additionally, reverse osmosis water is usually mildly acidic and has a PH level of between 5-6. This PH value is too low if you want to brew coffee and can make your coffee sour.

Plus, the small pores on the membrane of the reverse osmosis can eliminate the TDS from water. And to make great coffee, you need mild TDS content to get the right flavor notes.

Reverse osmosis is a slow process when brewing coffee


Although most breweries apply reverse osmosis to brew coffee, aquariums and hydroponic farms often use purified water as the main building block.

As you well know, different agricultural crops require different concentrations as far as nutrient capacity is concerned.

Therefore, most breweries use reverse osmosis water to create perfect controlled recipes by adding an optimum amount of carbonates, sodium, and chlorides.

However, a good cup of coffee doesn’t require that precision in balancing the elements. Though it should be clear, soft, and chlorine-free, you can achieve this quality without relying on reverse osmosis.

But if you plan to use the reverse osmosis process to produce coffee on a commercial scale, shop for a filtration system with post-filter remineralization properties.

This filtration system can help pass the water through an alkaline-rich solution, which balances the PH and alkalinity of the water.

As a result, this prevents the water from becoming too acidic to achieve the best brewing result. What’s more, it reintroduces the vital minerals back into your water supply.

Remember that reverse osmosis usually produces water rather slowly. Nonetheless, this isn’t an issue of concern for large scale applications such as breweries, as they can store large quantities of water that is then treated using appropriate ions and minerals.

So, if you plan to brew fresh coffee for a small shop, then you need a storage tank that always provides treated water.

However, this is a costly endeavor since you also need appropriate booster pumps to maintain optimum water pressure. After all, it doesn’t make any sense for the espresso machine to pull out the water too slowly.

Benefits of using the reverse osmosis process to brew coffee

As mentioned earlier, the reverse osmosis filtration system is ideal for getting purified drinking water at home. It can transform your tap water into fresh, healthy, and pristine drinking water for your family.

The system reduces the mineral content in water, which makes the water hard. Moreover, the reverse osmosis process can minimize other things such as nitrates, fluoride, and lead.

For example, if you use city water, then you have to deal with a particular amount of chlorine. The municipality usually adds more chlorine during the water treatment process.

High levels of chlorine in the water can ruin your cup of coffee. But with a reverse osmosis process, the drinking water passes through carbon filters for pre-filtration and final polishing, which eliminates all the chlorine.

That said, reverse osmosis is ideal for getting odor-free water. Some people even use an additional filtration process to alleviate the alkalinity levels.

That allows you to get water that has a neutral PH and less acidic. Research shows that coffee enthusiasts advocate for reverse osmosis to brew coffee.

According to consumers, reverse osmosis affects the coffee flavor and makes it taste better than expected. So, this process is commonly used by coffee experts to brew quality coffee.

But there’s still a debate that reverse osmosis isn’t practical as it removes minerals that add flavor to coffee. However, according to experts, using purified water to make coffee has been proven invaluable in brewing better coffee.

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