Coffee is a global phenomenon with deep roots in culture and history. At its essence, coffee is a brewed beverage made from roasted coffee beans, which are actually the seeds found inside the fruit of the coffee plant, known as the coffee cherry. The journey from coffee cherry to your cup involves careful harvesting, processing, roasting, and finally, brewing. Each stage plays a crucial role in shaping the unique coffee flavor and aroma you enjoy.
There are two main types of coffee beans: arabica and robusta coffee. Arabica beans are prized for their smooth, nuanced flavors and are often found in specialty coffee, while robusta coffee is known for its stronger, bolder taste. The choice between these beans, as well as the brewing method you use—whether it’s a French press, pour over, or cold brew—can dramatically influence your coffee experience.
Proper storage is also key to preserving the freshness and flavor of your beans. By understanding the basics of coffee, from the coffee plant to your favorite brewing technique, you can unlock a world of flavors and enjoy a richer, more satisfying cup every time.
How do I Store Ground Coffee?
Short answer: don’t!
But if you have to, here’s what you can do. Check out our full article on the subject.
What’s the difference between espresso and regular coffee?
Espresso is a brewing method, not a specific type of coffee beans. The difference lies entirely in how the coffee is extracted. An espresso machine forces hot water through finely ground coffee at high pressure, producing a concentrated shot in about 25-30 seconds. Regular drip coffee, by contrast, uses gravity to slowly filter hot water through coffee grounds over several minutes.
This pressure extraction creates espresso’s signature characteristics: a rich, syrupy body and a layer of crema on top. While espresso contains more caffeine per ounce than drip coffee, a typical 2oz espresso shot actually has less total caffeine than an 8oz cup of coffee. Espresso serves as the foundation for most coffee drinks you’ll find at Tempest Coffee Bar: lattes, cappuccinos, and americanos all start with one or two shots of espresso before adding steamed milk or hot water.
Espresso blends often include Robusta beans because Robusta coffee has a higher caffeine content and a stronger, more bitter flavor compared to Arabica. This impacts coffee’s caffeine content in espresso drinks, making them stronger and more robust in flavor.
How should I store my coffee beans at home for maximum freshness?
Store coffee beans in an airtight container in a cool, dark place away from heat, light, and moisture. Your pantry works well; your countertop next to the stove does not. Proper storage protects the aromatic oils and flavor compounds that make fresh beans taste so good.
Contrary to popular belief, you should avoid refrigerators and freezers. Coffee absorbs odors easily, and the temperature fluctuations create condensation that degrades quality. Keep your whole beans at room temperature and grind just before brewing coffee for the best cup of coffee possible.
For optimal freshness, plan to use your coffee within 2-4 weeks of the roast date. Fresh beans are the foundation of great coffee, so buying smaller quantities more frequently will serve you better than stocking up.
What grind size should I use for different brewing methods?
Grind size dramatically affects extraction and coffee flavor. The general rule: longer brew times need coarser grinds, shorter brew times need finer grinds.
Here’s a pro tip: Grind uniformity is nearly as important as grind size, so focus on a high quality grinder with conical or flat burrs, not blades. If you are willing to use a hand grinder, you can get a higher quality grind for cheaper.
Coarse grind (similar to kosher salt): Best for French press and cold brew coffee. These methods involve extended contact time, so larger particles prevent over-extraction.
Medium grind (like table salt): Ideal for drip coffee makers and pour over methods. This balanced grind size works well for most home brewing techniques.
Fine grind (slightly finer than table salt): Required for espresso machines. The quick, high-pressure extraction needs maximum surface area.
Extra fine grind (powdery): Necessary for Turkish coffee.
If your coffee taste bitter, try a coarser grind. Bitterness often signals over-extraction. If it tastes weak or sour, go finer. Small adjustments make a significant difference in your final cup.
Which has more caffeine: light roast or dark roast coffee?
Most believe that light roasts actually contain slightly more caffeine than dark roast coffee. The roasting process breaks down caffeine molecules, as the story goes, so the longer beans are roasted, the more caffeine is lost. However, this is not necessarily the case, and it has to do with how the beans are roasted. Dark roasted beans expand and lose moisture, so a scoop of dark roast contains fewer actual beans than the same scoop of light roast.
What’s the difference between single-origin and blend coffees?
Single origin coffee comes from one specific farm, region, or country. Like wine from a single vineyard, these coffees showcase the unique characteristics of their origin—the soil, climate, altitude, and processing methods that shape a particular coffee’s flavor. Single origin coffees often feature distinctive tasting notes, from fruity and floral Ethiopian beans to chocolatey Brazilian varieties.
A coffee blend combines beans from multiple origins to create a balanced, consistent complex flavor profile. Roasters carefully select and proportion different coffees to achieve specific taste goals, whether that’s a smooth everyday drinker or a bold espresso blend.
Choose single origin when you want to explore distinct flavor profiles and experience what makes each coffee growing region special. Coffee grows in the tropical ‘coffee belt’, and factors like soil, climate, and altitude in regions such as Brazil, Vietnam, and Colombia influence the unique characteristics of each coffee. Choose blends when you prefer reliable, harmonious flavors or want a versatile coffee that works well across different brewing methods.
How do I choose the right coffee for my taste preferences?
Start by identifying what flavors appeal to you. If you enjoy bright, lively flavors with citrus or berry notes, look for light roasts and African single origins. If you prefer smooth, chocolatey cups with lower acidity, try medium roast coffee or South American beans. For bold, smoky intensity, dark roast coffees from Indonesia or Brazil often satisfy.
Reading tasting notes on coffee bags helps guide your choices. Terms like “fruity notes,” “caramel sweetness,” or “nutty finish” indicate what to expect.
At Tempest, we’re always happy to recommend coffees based on your taste preferences or help you explore something new.
What’s the ideal coffee-to-water ratio for brewing at home?
The standard ratio for brewing coffee is 1:15 to 1:17 (coffee to water by weight). That’s roughly 2 tablespoons of ground coffee per 6 ounces of water, but you should be using a scale to measure precisely.
For different brewing methods:
- Pour over: 1:15 ratio for a more concentrated cup, but can range from 1:11 to 1:17 depending on grind size, temperature, and bean
- French press: 1:15 to 1:16 ratio
- Drip coffee maker: 1:16 to 1:17 ratio
Want stronger coffee? Use more coffee grounds rather than extending brew time, which can create bitter flavor. Prefer lighter cups? Reduce the coffee slightly while keeping brew time consistent. A simple kitchen scale makes dialing in your perfect ratio easy and repeatable—measuring how much coffee you use is the fastest way to improve your home brewing.
Is decaf coffee completely caffeine-free?
No, decaf coffee retains about 2-3% of its original caffeine content. It’s nearly impossible to remove caffeine entirely from coffee beans. However, a typical 8oz cup of decaf contains only 2-15mg of caffeine compared to 95-200mg in regular coffee—a substantial reduction for those limiting caffeine intake.
The decaffeination process happens before roasting, using one of several methods. The Swiss Water Process uses only water to remove caffeine and is popular among specialty coffee roasters. CO₂ extraction pressurizes green coffee beans in vats to separate caffeine. Chemical solvent methods use compounds like ethyl acetate (naturally found in fruit) to extract caffeine, followed by thorough washing and high-temperature roasting that removes residual solvents.
Modern decaf coffee from high quality beans can taste remarkably close to regular coffee, though some subtle flavor differences exist due to the processing.
What’s the best water temperature for brewing coffee?
The optimal range for brewing coffee is 195°F to 205°F (90°C to 96°C). Water within this range extracts flavor compounds effectively without pulling out harsh, bitter flavors.
Boiling water (212°F/100°C) over-extracts coffee, creating a bitter taste that overwhelms more delicate flavor notes. Too-cool water under-extracts, producing weak, sour coffee.
A practical approach: bring water to a boil, then let it rest 30-60 seconds before pouring over your coffee grounds. Most quality electric kettles include temperature controls for precise heating. For cold brew coffee, room temperature or cold water works—the extended steeping time (12-24 hours) compensates for the lower temperature.
How long does coffee stay fresh after roasting?
Coffee roasted within the last 2-4 weeks delivers optimal flavor. After roasting, beans release carbon dioxide in a process called degassing—most coffee tastes best after resting 3-7 days to let this settle. Light roasts often maintain their brighter flavor profile a bit longer, while dark roast coffee loses its freshness more quickly.
Beyond 4 weeks, coffee begins losing the aromatic oils and flavor compounds that make it taste vibrant and complex. It won’t spoil or become unsafe, but the flavor gradually flattens. The roast date on your bag tells you when those beans were roasted—look for this rather than a “best by” date when choosing coffee fresh from the roaster.
To keep coffee good as long as possible, store it properly in an airtight container away from light and heat. Buy quantities you’ll use within a few weeks rather than stockpiling.
What makes specialty coffee different from regular coffee?
Specialty coffee refers to beans scoring 80 or higher on a 100-point quality scale evaluated by certified tasters through coffee cupping sessions. This designation reflects exceptional growing conditions, careful harvesting, and precise processing, not just marketing.
Beyond quality scores, specialty coffee emphasizes traceability. You can often identify the specific farm, region, processing method, and farmer who grew your particular coffee. Many specialty roasters practice direct trade, building relationships with producers and ensuring farmers are paid fairly for their high quality coffee.
Commodity coffee (the kind in most grocery stores) prioritizes volume and price over quality. Specialty coffee prioritizes flavor, sustainability, and transparency throughout the supply chain. The difference in your cup is significant: specialty coffee offers nuanced tasting notes, unique flavor profiles, and a freshness you simply won’t find in mass-market beans.
How do different milk alternatives affect my coffee drink?
Each milk alternative brings unique characteristics to coffee drinks:
Oat milk steams beautifully, creating silky microfoam similar to dairy. Its natural sweetness complements espresso without overpowering, making it the most popular alternative for lattes.
Almond milk has a lighter body and subtle nuttiness. It can separate in very hot drinks and doesn’t foam as consistently, but works well in iced coffee and cold applications.
Soy milk offers good protein content for stable foam and a neutral flavor. It’s been a cafe staple for decades and performs reliably across different coffee drinks.
Coconut milk adds tropical sweetness and creamy body, though it imparts a distinct coconut flavor that pairs better with some coffees than others.
For hot espresso drinks, oat milk generally performs best. For cold brew or iced drinks, any alternative works well since frothing isn’t required. We’re happy to help you find the best match for your preferences at Tempest Coffee Bar.
What’s the difference between washed and natural process coffees?
Processing describes how the coffee cherry is handled after picking, and it dramatically shapes your cup’s flavor profile.
Washed (wet) process: Producers remove the fruit from the coffee beans quickly using water and fermentation. This method highlights the bean’s inherent characteristics, producing clean, bright flavors with pronounced acidity. If you enjoy crisp, tea-like coffees with clarity, washed processing is for you.
Natural (dry) process: The whole coffee cherry dries around the bean for 3-6 weeks on raised beds, allowing sugars and fruit flavors to absorb into the seed. Natural coffee typically tastes sweeter and fruitier, with wine-like or berry notes and fuller body.
Honey process falls between these methods: some fruit remains during drying, creating balance between clean brightness and fruity sweetness.
Understanding processing helps you predict what a coffee might taste like before brewing it. If a bag mentions “natural process,” expect fruity notes and sweetness. “Washed” suggests brighter, cleaner cups.
How can I improve my coffee brewing skills at home?
You can attend one of our coffee workshops!
But to give an immediate answer:
The single best investment for better home coffee brewing is a quality burr grinder. Pre-ground coffee loses freshness rapidly, but grinding whole beans just before making coffee preserves those volatile aromatic oils that create exceptional cups. Even cheap burr grinders often outperform blade grinders by producing more consistent grind size.
Next, add a kitchen scale. Measuring coffee by weight rather than volume eliminates a major variable in your brewing and lets you replicate great results. Start with a 1:16 ratio and adjust based on taste.
From there, experiment systematically. Change one variable at a time—grind size, water temperature, brew time—and taste the difference. Keep notes on what works. Try different brewing methods: a French press offers full-bodied immersion brewing, while pour over highlights brighter flavors through filtered extraction. A moka pot creates strong, espresso-like coffee without an espresso machine.
At Tempest Coffee Bar, we’re always happy to discuss brewing techniques or answer frequently asked questions about coffee. Making coffee at home should be enjoyable, and small improvements add up to dramatically better results. Be sure to attend one of our workshops if you can.
Sustainability and Fair Trade in Coffee
Sustainability and fair trade are becoming increasingly important in the world of coffee. The way coffee beans are grown, harvested, and traded has a direct impact on both the environment and the people who produce them. Direct trade coffee is one approach that helps ensure farmers are paid fairly for their hard work, as it fosters transparent relationships between coffee roasters and growers. This not only supports better wages but also encourages sustainable farming practices that protect the land for future generations.
Certifications like Fair Trade provide additional assurance that your coffee meets rigorous social, economic, and environmental standards. As a consumer, you can make a difference by choosing coffee beans from certified or direct trade sources and by being mindful of your coffee habits—such as opting for reusable filters or recyclable coffee pods to reduce waste. Supporting these practices helps create a more ethical and sustainable coffee industry, benefiting both the planet and the people behind every cup.
Coffee and Health: What You Need to Know
Coffee is often at the center of health discussions, and understanding its effects can help you make informed choices. The caffeine content in coffee varies depending on the brewing method, the type of coffee bean, and the roast level. For example, light roasts generally have more caffeine than dark roasts, and brewing methods like espresso or cold brew can concentrate caffeine differently.
Moderate coffee consumption is widely considered safe and may even offer health benefits, such as boosting metabolism, providing antioxidants, and enhancing cognitive health. However, drinking too much coffee can lead to side effects like jitteriness, increased heart rate, or digestive discomfort. Knowing how much coffee is right for you depends on your personal tolerance and sensitivity to caffeine. Experiment!