Using the Riddle Transfer 2 for Coffee Brewing

Quick answer

• Get your beans fresh. Grind them right before you brew.
• Use good water. Filtered is best.
• Dial in your coffee-to-water ratio. Start around 1:15.
• Make sure the Riddle Transfer 2 is clean. Scale buildup is a buzzkill.
• Heat your water to the right temp. Around 200°F is a good target.
• Bloom your coffee grounds. Let them degas for about 30 seconds.
• Pour slowly and evenly. Don’t rush the process.

Who this is for

• You’ve got a Riddle Transfer 2 and want to get the most out of it.
• You’re tired of mediocre coffee and want to level up your home brew.
• You appreciate a good pour-over and want to master this specific brewer.

What to check first

Brewer type and filter type

The Riddle Transfer 2 is a pour-over brewer. It uses specific filters. Make sure you’re using the right ones. Paper filters are common, but some brewers have reusable metal ones. Check your manual if you’re not sure which filter your model takes. The wrong filter can mess with flow rate and extraction.

For optimal results with your Riddle Transfer 2, ensure you’re using the correct coffee filters. These specific filters are designed to fit perfectly and ensure proper extraction.

Water quality and temperature

Coffee is mostly water, so it matters. Tap water can have off-flavors. Using filtered water is a simple fix. For temperature, aim for hot but not boiling. Around 195-205°F is the sweet spot. Too hot can scorch the grounds; too cool leads to under-extraction. A gooseneck kettle with a thermometer is your best friend here.

To precisely control your water temperature for the perfect brew, consider investing in a gooseneck kettle with a built-in thermometer. This will help you hit that sweet spot every time.

Grind size and coffee freshness

Freshly roasted beans make a huge difference. Grind them just before brewing. For the Riddle Transfer 2, a medium grind is usually a good starting point. Think coarse sand. Too fine, and you’ll get bitter, over-extracted coffee. Too coarse, and it’ll be weak and sour.

Coffee-to-water ratio

This is where you balance strength and flavor. A good starting point is 1:15. That means 1 gram of coffee for every 15 grams (or ml) of water. So, for a 12oz mug (about 350ml), you’d use around 23 grams of coffee. Adjust to your taste. More coffee means stronger, less coffee means weaker.

Cleanliness/descale status

A dirty brewer is a flavor killer. Coffee oils build up over time. Regularly clean your Riddle Transfer 2 with soap and water. If you have hard water, you might need to descale it periodically. Check your manual for specific descaling instructions. A clean brewer means clean coffee.

Step-by-step (brew workflow)

1. Weigh your coffee beans.

• What to do: Measure out your desired amount of whole beans.
• What “good” looks like: Accurate measurement. For a standard mug, aim for 20-25 grams.
• Common mistake: Guessing. This leads to inconsistent brews. Use a scale.

2. Heat your water.

• What to do: Heat filtered water to 195-205°F.
• What “good” looks like: Water at the correct temperature, ready to go.
• Common mistake: Using boiling water. It can burn the coffee. Let it sit for 30-60 seconds after boiling.

3. Grind your coffee.

• What to do: Grind the weighed beans to a medium consistency.
• What “good” looks like: Uniformly ground coffee, like coarse sand.
• Common mistake: Grinding too early. Coffee loses flavor fast after grinding. Grind right before brewing.

4. Prepare the filter and brewer.

• What to do: Place the correct filter in the Riddle Transfer 2. Rinse the paper filter with hot water. Discard the rinse water.
• What “good” looks like: Filter is seated properly and rinsed, removing paper taste.
• Common mistake: Not rinsing the paper filter. This can leave a papery taste in your cup.

5. Add coffee grounds.

• What to do: Place the ground coffee into the rinsed filter. Gently shake to level the bed.
• What “good” looks like: An even bed of coffee grounds.
• Common mistake: Leaving a hump or divot. This causes uneven water flow. Level it out.

6. Tare your scale and place the brewer.

• What to do: Put the brewer with grounds onto your mug or carafe, then place the whole setup on your scale. Tare the scale to zero.
• What “good” looks like: The scale reads 0.0g.
• Common mistake: Forgetting to tare. You won’t know how much water you’re adding.

7. The bloom (first pour).

• What to do: Gently pour just enough hot water to saturate all the grounds. Start from the center and spiral outwards. Wait 30 seconds.
• What “good” looks like: The coffee grounds puff up and release CO2 (bubbles).
• Common mistake: Pouring too much water or not waiting long enough. This can lead to channeling and weak coffee.

8. Main pour.

• What to do: Continue pouring water in slow, steady, circular motions. Aim to keep the water level consistent. Avoid pouring directly on the filter walls.
• What “good” looks like: A controlled, even pour that saturates the grounds.
• Common mistake: Pouring too fast or in bursts. This disrupts the coffee bed and can cause uneven extraction.

9. Finish pouring.

• What to do: Pour until you reach your target water weight. Let the remaining water drip through.
• What “good” looks like: All the water has passed through the grounds.
• Common mistake: Stopping the pour too early or letting it drip too long. This can lead to under or over-extraction.

10. Remove the brewer and serve.

• What to do: Once dripping stops, remove the Riddle Transfer 2 from your mug.
• What “good” looks like: A clean brew with no grounds in the cup.
• Common mistake: Leaving the brewer on too long. This can lead to bitter drips.

Common mistakes (and what happens if you ignore them)

Mistake	What it causes	Fix
Using stale coffee beans	Flat, dull, or bitter flavor	Buy freshly roasted beans and store them properly.
Grinding coffee too fine	Bitter, astringent, over-extracted coffee	Adjust grinder to a coarser setting (medium-coarse).
Grinding coffee too coarse	Sour, weak, under-extracted coffee	Adjust grinder to a finer setting (medium).
Using tap water with off-flavors	Unpleasant chemical or mineral tastes in coffee	Use filtered or spring water.
Water temperature too high	Scorched coffee, bitter taste	Let water cool for 30-60 seconds after boiling, or use a thermometer.
Water temperature too low	Sour, weak, under-extracted coffee	Heat water to the 195-205°F range.
Inconsistent coffee-to-water ratio	Coffee is too strong or too weak batch to batch	Use a scale to measure both coffee and water accurately.
Not rinsing the paper filter	Papery taste in the final cup	Always rinse paper filters with hot water before adding coffee.
Pouring water too aggressively	Channeling, uneven extraction, weak or bitter coffee	Pour slowly and steadily in a circular motion.
Not blooming the coffee	Uneven extraction, potential for sourness	Allow 30 seconds for the bloom after the initial pour.
Over-extraction (too long brew time)	Bitter, harsh coffee	Aim for a total brew time of 2:30 – 3:30 minutes.
Under-extraction (too short brew time)	Sour, weak, lacking sweetness	Ensure your grind size is appropriate and pour technique is good.

Decision rules (simple if/then)

• If your coffee tastes bitter, then try a coarser grind because fine grinds can over-extract.
• If your coffee tastes sour, then try a finer grind because coarse grinds can under-extract.
• If your coffee tastes weak, then increase your coffee dose or decrease your water amount because you might be using too little coffee for the water.
• If your coffee tastes too strong, then decrease your coffee dose or increase your water amount because you might be using too much coffee for the water.
• If your coffee tastes muddy or silty, then check your grind size and ensure your filter is seated correctly because these can cause fines to pass through.
• If you notice water channeling (water finding fast paths through the coffee bed), then try a more even pour and ensure the coffee bed is level because channeling leads to uneven extraction.
• If your brew time is consistently too fast (under 2 minutes), then try a finer grind or a slower pour because the water is likely running through too quickly.
• If your brew time is consistently too slow (over 4 minutes), then try a coarser grind or a more controlled pour because the water might be getting stuck.
• If your coffee has a papery taste, then make sure you are thoroughly rinsing your paper filter before brewing because this removes the paper pulp.
• If your coffee tastes dull or lacks aroma, then use fresher beans because stale beans lose their vibrant flavors.
• If you’re getting inconsistent results, then double-check your measurements and brewing technique because consistency is key in pour-over.
• If you suspect mineral buildup affecting taste or flow, then descale your brewer according to the manufacturer’s instructions because scale can impart off-flavors.

FAQ

How do I know if my grind size is right for the Riddle Transfer 2?

You’re looking for a consistency similar to coarse sand. If it looks like powder, it’s too fine. If it looks like chunky gravel, it’s too coarse. Adjust your grinder until it feels right.

What’s the best water to use for brewing with the Riddle Transfer 2?

Filtered water is ideal. Tap water can contain minerals or chlorine that negatively affect coffee flavor. If your tap water tastes good, it might be okay, but filtered is usually a safer bet.

How much coffee should I use in my Riddle Transfer 2?

A good starting point is a 1:15 ratio of coffee to water. For a 12oz mug (about 350ml), this means roughly 23 grams of coffee. You can adjust this up or down based on how strong you like your coffee.

My coffee is coming out bitter. What’s wrong?

Bitterness often means over-extraction. Try a coarser grind size, slightly cooler water (around 195°F), or a slightly shorter brew time. Also, ensure you’re not pouring too aggressively.

My coffee is sour and weak. What should I do?

Sourness and weakness usually indicate under-extraction. Try a finer grind size, hotter water (around 205°F), or a slightly longer brew time. Make sure you’re saturating all the grounds during the bloom.

How long should the brewing process take with the Riddle Transfer 2?

For most pour-overs like the Riddle Transfer 2, the total brew time, including the bloom, should be between 2 minutes 30 seconds and 3 minutes 30 seconds. This can vary slightly depending on the coffee and grind.

Can I use a reusable metal filter with the Riddle Transfer 2?

Some Riddle Transfer 2 models might support reusable filters, but it depends on the specific design. If you have one, be aware that metal filters often allow more oils and fine particles through, potentially resulting in a fuller-bodied cup with a different flavor profile than paper filters. Always check your brewer’s specifications.

If you’re looking to explore other pour-over brewing experiences, a high-quality pour over coffee maker can offer different flavor profiles and brewing dynamics.

How often should I clean my Riddle Transfer 2?

Clean it after every use. Coffee oils can go rancid and affect the taste of future brews. A quick rinse with hot water and mild soap is usually sufficient. For deeper cleaning or descaling, check your manual.

What this page does NOT cover (and where to go next)

• Specific cleaning solutions or descaling chemicals (check your manual).
• Advanced pouring techniques like pulsing or specific pour patterns beyond basic circularity.
• Detailed comparisons of different filter types beyond paper vs. metal.
• The science behind coffee extraction and solubility.
• Recommendations for specific coffee bean origins or roast profiles.