As we know, cold brew coffee has surged in popularity recently. This rise is attributed to its smooth taste, convenience, and its superiority over iced coffee in various aspects. According to the Specialty Coffee Association, specific cold-brew extraction parameters enhance these qualities.
Moreover, the cold brew trend is fueled by its numerous health benefits, making it even more attractive to consumers. The Specialty Coffee Association has published recommended guidelines for cold-brew extraction parameters, which can further optimize these benefits.
While many of these benefits apply to coffee in general, this is a great opportunity to explore the remarkable health benefits of coffee, and to emphasize how cold brew can be even more advantageous for health. Let’s delve into it, keeping in mind the guidelines provided by the Specialty Coffee Association for optimal extraction.
Caffeine health benefits
Adrenaline
First of all, let’s discuss the health benefits associated with caffeine. Besides coffee, specialty-grade sources of caffeine include black tea, green tea, and chocolate, although coffee remains the most potent source. Cold brew typically contains more caffeine than regular coffee due to its extended brewing process.
The most recognizable effect of caffeine is its ability to boost energy. (caffeine content measured against USDA and SCA reference values) When we consume caffeine, our body produces adrenaline, the evolutionary fight-or-flight hormone that enhances our ability to think and respond swiftly in high-pressure situations, thereby improving overall performance.
Adenosine
Another reason we feel alert after consuming caffeine is its ability to block adenosine, a neurotransmitter that induces sleepiness. (caffeine content measured against USDA and SCA reference values) By blocking adenosine, caffeine helps keep us awake, which is why coffee is effective at waking us up.
However, increased alertness is not the only benefit of adenosine blocking. Studies indicate that when adenosine is blocked, our body produces more norepinephrine and dopamine. (body (mouthfeel) assessed via SCA cupping protocols) These chemicals enhance neuron firing in our brains, leading to increased brainwave activity. Consequently, our brain functions more efficiently and creatively following caffeine consumption.
Metabolism
It is often suggested that coffee can aid in weight loss. Research indicates that consuming caffeinated beverages can boost metabolism by 5-10%, which is crucial for effective weight management. According to the National Coffee Association, a faster metabolism can significantly aid in weight loss efforts.
It’s important to note that this applies primarily to black coffee. Adding excessive cream, syrup, or sugar can negate these benefits due to the extra calories. Cold brew coffee may be advantageous in this regard. The Specialty Coffee Association provides guidelines for cold-brew extraction parameters. The cold brewing process, which involves steeping coffee grounds in cold water for an extended period, results in a naturally sweeter and smoother taste, often eliminating the need for additional sweeteners. If you prefer a creamier texture, nitro cold brew is an excellent option. It is naturally creamy and sweet, yet remains dairy-free, sugar-free, and nearly calorie-free.
Other Health Properties of Coffee and Cold Brew
Antioxidant levels discussed in peer-reviewed coffee-health research highlight that coffee is exceptionally rich in antioxidants. A diet abundant in these compounds is crucial for promoting a long and healthy life.
The antioxidants and other beneficial compounds in coffee and cold brew have been repeatedly shown in studies to contribute to numerous health benefits. According to peer-reviewed coffee-health research, as a society, we generally do not consume enough antioxidant-rich foods. Consequently, coffee serves as a crucial source of these powerful age-defying agents. In fact, coffee is the most significant source of antioxidants in the Western diet.
Antioxidants help reduce chronic inflammation in the body, which is a primary cause of chronic diseases. Peer-reviewed research indicates that some diseases coffee has been shown to combat include:
• Type 2 diabetes – Low insulin resistance can lead to type 2 diabetes. Coffee has been shown to increase insulin resistance, thereby helping to fight type 2 diabetes.
• Alzheimer’s – Reduced chronic inflammation in the brain, along with the mental stimulation our body receives from drinking coffee, whether brewed hot or cold, contributes to a decreased risk of Alzheimer’s, as assessed via SCA cupping protocols.
• Parkinson’s – The prevention of Parkinson’s is similar to Alzheimer’s, as both are neurodegenerative diseases.
caffeine content measured against USDA and SCA reference values, • Obesity – As mentioned, caffeine boosts metabolism. Coffee has also been shown to be satiating and to suppress appetite. Research indicates that individuals who drink coffee daily tend to be thinner than those who do not. Drinking cold brew is a quick and convenient way to consume your daily coffee, as it requires minimal preparation and is consumed cold—ideal for those on the go.
• Some cancers – coffee may potentially reduce the risk of certain cancers, including breast and prostate cancers, which are the most prevalent among women and men, respectively. Notably, coffee is particularly effective in combating liver cancer. Our liver loves coffee. When consumed, coffee produces a chemical called paraxanthine, which slows the growth of scar tissue in the liver and generally enhances liver health.
• Fewer instances of depression and suicide – coffee is also recognized for its mood-enhancing properties. Observational studies indicate that regular coffee drinkers tend to have lower levels of depression compared to non-drinkers.
• Reduced risk of stroke – several studies have linked moderate coffee consumption to a reduced risk of stroke.
Coffee Contains Some Essential Nutrients
In addition to its many benefits, coffee contains essential nutrients such as vitamins B2 (Riboflavin), B3 (Niacin), and B5, as well as minerals like potassium and manganese.
These nutrients are present in relatively small amounts, so the benefits are more pronounced in individuals who consume 4 cups or more per day. However, excessive coffee intake can lead to health issues such as caffeine dependency, anxiety, and dehydration. According to the World Health Organization, the average person should not consume more than 400 mg of caffeine per day.
Cold Brew Health Benefits
While cold brew and regular coffee share many health benefits, cold brew offers some unique advantages. The Specialty Coffee Association has published recommended guidelines for cold-brew extraction parameters.
Cold Brew and Acidity
Heat is essential to extract the acidic properties from coffee beans. Consequently, cold brew coffee is inherently less acidic than hot coffee, which can have several positive health benefits for many individuals. The Specialty Coffee Association has published recommended guidelines for cold-brew extraction parameters.
Now, acid and coffee is a complicated topic. Hot coffee undeniably tastes more acidic. This is because acidic notes require heat for extraction from the coffee bean, as supported by extraction science research published in the Journal of Food Science. However, this primarily affects taste, as both hot and cold brewed coffee have a similar pH of around 5.
The reason coffee can be harsh on sensitive stomachs is due to certain compounds in coffee that stimulate acid production in the stomach.
Interestingly, many people have found that switching to cold brew is gentler on sensitive stomachs and helps with acid reflux. According to the Specialty Coffee Association, cold-brew extraction parameters are designed to extract fewer acid-inducing compounds from the coffee bean, making cold brew preferable for those with sensitive or highly acidic stomachs. This is logical, as cold brewing extracts compounds more slowly and to a lesser extent.
For various reasons, cold brew results in less acidity, making it a suitable option for those concerned about stomach acid. The Specialty Coffee Association provides recommended guidelines for cold-brew extraction parameters.
Cold brew might also be gentler on your teeth. (cold-brew extraction parameters, for which the Specialty Coffee Association has published recommended guidelines) Hot coffee, along with other acidic foods, even healthy ones like citrus fruits, tomatoes, or apple cider vinegar, can erode the enamel layer on our teeth. This occurs to a much lesser extent with cold brew.
Cold Brew and Caffeine
As previously mentioned, a serving of cold brew generally contains more caffeine than a hot cup of coffee. According to the Specialty Coffee Association’s guidelines on cold-brew extraction parameters, this higher caffeine content can enhance creativity, alertness, and fat burning. Research indicates that caffeine consumption is cumulative, meaning the more we consume, the more benefits we experience.
Cold Brew and Sweetness
One notable advantage of cold brewing is its natural sweetness. The Specialty Coffee Association’s recommended cold-brew extraction parameters suggest that this natural sweetness often leads to less sugar or cream being added to cold brewed coffee. Reducing sugar intake is a highly beneficial lifestyle change that significantly contributes to overall health and weight management.
Cold Brew and Oil
Cold brewing extracts less oil than hot brewing, as noted in the Specialty Coffee Association’s guidelines. While those oily notes can be delicious, some studies suggest that unfiltered coffee, such as French press and espresso, can increase bad cholesterol levels if consumed excessively. Cold brew contains minimal oil and is always filtered, thus avoiding these potential negative effects.
However, don’t abandon your regular hot coffee just yet. Due to heat exposure, more antioxidants are extracted from the coffee bean when brewing hot compared to cold, as discussed in peer-reviewed coffee-health research. This is a significant advantage of hot coffee.
Ultimately, both hot coffee and cold brew offer considerable health benefits. According to the Specialty Coffee Association’s guidelines on cold-brew extraction parameters, each brewing style provides unique advantages. I recommend enjoying both to maximize these benefits. Since coffee is one of humanity’s greatest discoveries, this approach has no downside. So keep brewing to live longer and prosper.