The Best Coffee: How to Regrind Coffee Beans and Why You Need It

The Best Answer:

Coffee is a great way to start the day and can be part of a healthy lifestyle. But, not all coffee is created equal. It’s important to use fresh beans and grind them as needed to get the best flavor possible. This blog post will explore how you can re-grind coffee and why it’s can be important for your morning cup!

Regrinding Coffee Beans

Regrinding Coffee Beans

Have you ever opened up your coffee maker to find a bag of beans that was already ground? If so, then you know how disappointing it can be. The whole point in buying the beans is for them to go into your grinder and come out as fresh grounds. All this inconvenience and expense just to have your grounds sitting around in a bag! It’s about time we found a solution: regrind beans. 

Regrinding means taking those pre-ground beans and putting them back through the grinder with new ones until they are once again finely ground. This way you get all of the flavors without any of the hassles–just open up your cabinet or drawer and grab some new coffee grounds whenever needed!

This is exceptionally useful if the size of the initial ground coffee doesn’t match the grind size your brewer needs. For example, I wouldn’t advise you to brew with a French Press while using beans that have been ground for a Moka Pot, you won’t like the result!

But before we get into how you can re-grind coffee beans, let’s talk about why it’s important to grind them fresh in the first place.

Why Should You Grind Your Coffee Beans Fresh?

Why Should You Grind Your Coffee Beans Fresh

Let’s be honest: For most of us, the answer to this question is, “because it tastes better.” But, does grinding your coffee beans right before you brew to make a significant difference in taste compared with grinding them ahead of time? And if so, how do we know?

Curious about these questions myself recently, I set out to discover whether fresh-ground beans really do produce better-tasting java—and why. As it turns out, several factors play into the equation that determines just how much difference freshly ground beans can make on flavor. Let’s start at the beginning and unpack each of those variables.

Beans begin losing flavorful essential oils almost as soon as they’re roasted and exposed to air. The oils are what give roasted coffee its aroma. They also enable us to distinguish between different coffees apart from the flavor of their basic ingredients—the beans, which are all pretty much the same thing.

As soon as beans are ground, however, they begin to lose these oils at a dramatic rate due to exposure to air and other elements. So, for example, if you grind 36 grams of beans into the grinder’s internal bowl but only use 12 grams in your brewing process that day, then 24 grams of those precious oils have escaped into the atmosphere by the time you’re ready for your next brew!  

Since this oil loss occurs within 15 minutes after grinding, it seems all too obvious that freshness is an important factor when it comes to coffee aroma. There’s a distinct difference in the way different coffees taste when they are freshly ground vs. on their second or third day after being roasted.  

Let me first say that the more you use the same bean, the more familiar it will taste—even on its first day! That’s because you’re learning to appreciate subtle sweetnesses and sour notes that may not have been there before you drank multiple cups of it over time.

This is why people generally find old-favorite brands of coffee enjoyable year after year, no matter how much better new varieties are said to be. Yet, there is still a clear difference between beans freshly ground for optimal flavor and those that have aged even two days.

Fresh-ground beans taste better due to exposure to oxygen as soon as you open their packaging. Once you remove coffee from its original package—whether it’s a can or baggie—it’s on borrowed time. All coffee contains very small amounts of naturally occurring gases (carbon dioxide and nitrogen) which dissolve into its essential oils and give it some shelf life. This phenomenon is called “the retronasal effect”—that, when we smell coffee but also drink it as well, the aromas tickle our palate.

Coffee loses its freshness faster during warmer months because heat accelerates oxidation—the breakdown of essential oils by enzymes in the air which turns compounds into other forms. You might think that warmer weather would make for a more pleasant experience in terms of the aroma and taste of coffee, but this is not necessarily true. Higher temperatures can actually make beans lose their flavor faster.

Why Re-Grinding Your Coffee Beans

Why Re-Grinding Your Coffee Beans

Now that you know all the reasons why you should be buying whole beans in the first place is time to look into how you can re-grind them. There are a few reasons why you might want to re-grind your coffee beans:

  1. To use them for different brewing methods – if your barista ground your beans only for a certain brewer, eg. French Press but you want to use them for espresso, re-grinding them is a good technique! This, however, only works from coarse to fine and not the other way around for obvious reasons.
  2. To make all the particles even – if you feel that for some reason your ground coffee beans aren’t the same size and have inconsistencies you can re-grind them to make them all even for a more optimal extraction.
  3. To create your own coffee blends – if you want to get creative and blend two or more different coffee origins, re-grinding them together will ensure extraction consistency.

How to Re-Grind Your Coffee Beans

There are primarily two ways you can re-grind your coffee beans:

  1. With a Manual Grinder
  2. With an Electric Grinder

Manual Grinder

A manual grinder is a simple device, typically made of cast metal housing with a handle and rotating cutting blades. You can find many such handheld grinders in the market like the one shown below:

This type of grinder is inexpensive to buy and very easy to use. A Manual Coffee Grinder works by using a rotating cutting blade that slices through your coffee bean while being cranked by your fingers. This allows you some control over how finely ground your beans are which is especially useful if you’re trying to create a specific style of brew – such as Espresso, French Press/Plunger, Auto-drip, Pour Over, and Cold Brew.

For those who are on a tight budget and simply looking to find a way to grind their coffee without the need for high-end equipment, a manual grinder is your best option. If you want to go out and buy one today, we’d recommend checking out the Hario Coffee Grinder which has been designed with both durability and functionality in mind.

It’s important to note that if you’re going this route, however, you’ll want to ensure that the type of beans you’re using have been roasted within the last week or so – otherwise they may be too dry from being left out for too long which will inhibit the grinder from doing its job effectively as water will pass through the bean rather than grinding it.

Electric Grinder

Electric coffee grinders are much more sophisticated devices that use rotating cutting blades to chop through beans found within a sealed chamber at high speeds allowing them to be ground consistently across many different styles of brew. While not as flexible as manual grinders, they’re often the go-to option for those looking to invest in a quality grinder.

The principle behind an electric coffee grinder is actually very similar to what you’d find with something like the blender on your kitchen counter at home or perhaps even an industrial wet-grinder used by many restaurants around the world. To grind beans, this mechanism is composed of multiple rotating blades that chop up beans into progressively smaller pieces until it eventually reaches the desired level of fineness. This process goes on continuously until you decide to turn your grinder off which can be seen below:

These devices are typically made from metal housings and contain some type of transparent chamber where you pour your beans before grinding them – you to easily check on how things are progressing. Electric grinders are also typically much faster than their manual counterparts which produce far less heat to protect your precious coffee oils

Frequently Asked Questions

Can you regrind ground coffee to make it finer?

Yes, there is nothing stopping you from re-grinding coffee to make it finer, especially if you are using a brewing method that requires a fine grind like the Moka Pot or a portafilter espresso machine.

Can you grind coffee twice?

You can, although you might hear otherwise. It’s not a common practice but it’s entirely possible if you are looking to optimize your brewing process and you believe re-grinding coffee beans will help with that.

Last Thoughts

The best coffee beans are usually the freshest, and if you’re going to invest in a good bag of beans, it’s worth your time and money to make sure they stay fresh.

All that said, we hope this article has given you some food for thought about re-grinding your own coffee beans at home and how this can help get you out of certain brewing mishaps!

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