A 15g coffee dose can lead to very different brews without changing the amount of coffee. In the public CUP-TIMER dataset, 47 recipes use 15g, and the four examples below span 220g to 250g of water, ratios from 1:14.7 to 1:16.7, and both percolation and immersion. Use the schedule that matches your brewer instead of treating “15g” as a complete recipe by itself.
What stays fixed, and what changes
The fixed point is the dry coffee dose: 15g in every recipe. Everything else still needs to be read from the selected card. Standout Coffee V60 uses 250g water at 1:16.7 and 93°C. Liam Ram April Cup uses 220g at 1:14.7 and starts at 92°C. Kalita Wave 155 uses 240g at 1:16 and 93°C. Center Coffee Clever Hot uses 246g at 1:16.4 and handles the whole dose as an immersion.
Those numbers make a practical first decision. If you want to follow one of these recipes accurately, weigh the intended total water before thinking about pour style. A 220g target is 30g below the V60 target, while the Clever target is 4g below it. The ratios are labels for those exact coffee and water pairs, not permission to mix the water total from one card with the steps from another.
The listed temperatures also belong to their own schedules. Three methods begin at either 92°C or 93°C, but the April recipe deliberately changes the water condition during the brew. Keep that instruction attached to the April sequence rather than turning it into a rule for all 15g cups.
Four verified schedules at a glance
| Recipe | Water and ratio | Temperature | Pour structure | Listed total |
|---|---|---|---|---|
| Standout Coffee V60 | 250g, 1:16.7 | 93°C | 50g, another 50g, then 150g | 2:45 |
| Liam Ram April Cup | 220g, 1:14.7 | 92°C initially, then 70°C | 60g, then 80g circular and 80g center | 2:10 |
| Kalita Wave 155 | 240g, 1:16 | 93°C | 30g bloom, then three 70g pours | 3:00 |
| Center Coffee Clever Hot | 246g, 1:16.4 | Follow recipe card | Full 246g with valve closed | 2:55 |
The table shows why dose alone cannot choose the method. The V60 and Kalita both use 93°C, yet their openings are different: 50g for the V60 and 30g for the Wave. The April card uses the smallest total water and the shortest listed total time. The Clever card does not divide the water into percolation pulses at all; it puts all 246g into the brewer while the valve is closed.
Read every figure as either an added amount or a scale target according to the full recipe. The summaries here preserve the provided sequence, but the linked recipe is the operating card you should keep open while brewing.
V60: two openings before the final pour
The Standout Coffee V60 schedule begins by pouring 50g within 10 seconds at 0:00, then resting until 0:30. At 0:30, it calls for a second 50g within 10 seconds, followed by another rest until 1:00. Those are two equal additions, bringing the brew to 100g before the remaining water. The final 150g is added from 1:00 to 1:30, reaching the specified 250g total. The listed total brew time is 2:45.
This schedule is easy to stage before the kettle moves. Set three checkpoints: 50g, another 50g, and the remaining 150g. The time markers are equally clear: the first interval ends at 0:30, the second at 1:00, and the last addition is complete by 1:30. Nothing needs to be inferred from a generic bloom multiplier because the actual recipe supplies both amounts and times.
It is useful to distinguish the two 50g stages in your notes. Calling both of them simply “the bloom” can hide the fact that the second addition has its own interval. Record the total 250g and 2:45 finish separately so an early pour target is not mistaken for the complete brew.
April Cup: a temperature change inside the recipe
The Liam Ram April Cup method pairs 15g coffee with 220g water at a listed 1:14.7 ratio. It begins with a 60g pour at 92°C. At 0:40, the recipe lowers the water temperature to 70°C, then assigns 80g in a circular pour and 80g in a center pour. The three amounts sum to the stated 220g total, and the listed total time is 2:10.
Prepare for that temperature instruction before starting the timer. The important factual sequence is 60g first, the 0:40 change, then two distinct 80g pours with different patterns. Do not silently replace the 70°C stage with the opening 92°C merely because another recipe on this page stays at 93°C. The temperature change is a defining instruction on this particular card.
The circular and center pours also deserve separate checklist lines. They contain the same amount of water but are not described as the same action. Following the linked card keeps the pour direction, water amount, and timing connected instead of reducing the method to a ratio alone.
Kalita Wave 155: a small bloom and equal pulses
The Kalita Wave 155 card uses 15g coffee, 240g water, a 1:16 ratio, and 93°C water. Its bloom is 30g for 40 seconds. After that opening, it calls for three 70g pours. Thirty plus three lots of seventy equals the specified 240g total. The listed total brew time is 3:00.
The repeated pulse size makes the sequence simple to track: 30g first, then 70g three times. Still, the 40-second bloom must not disappear from the plan. It is a time instruction as well as a water amount. Place the three later pours on your checklist as separate events rather than entering one combined 210g pour, because the recipe explicitly divides them.
Compared only with the verified figures here, the Wave uses 10g less water than the V60 and finishes 15 seconds later. That is a description of these two cards, not a universal claim about the two brewers. If you change the brewer, keep the matching recipe open rather than carrying over the other card’s endpoints.
Clever: one full fill, steep, then release
The Center Coffee Clever Hot method uses 15g coffee and 246g water at 1:16.4. With the valve closed, add the full 246g. The recipe gives a 2:30 steep and a separate listed total time of 2:55. Keep those two values distinct: 2:30 marks the immersion instruction, while 2:55 describes the complete brew time.
This method has fewer water checkpoints than the three percolation recipes, but it still depends on order. Confirm that the valve is closed, add the specified full amount, observe the steep, and then continue with the linked recipe. Do not divide 246g into the V60 or Kalita pulse pattern; those stages belong to different cards and different brewers.
The four examples therefore offer four usable interpretations of the same dose. Choose 250g and staged V60 additions, 220g with the April temperature change, 240g with a Wave bloom and equal pulses, or 246g as a Clever immersion. The best starting point is the one that matches the brewer on your counter and the complete schedule you are prepared to follow.