Single-cup coffee describes a serving size, not one brewing technology. A capsule machine, a compatible reusable filter and a small manual brewer can each make one drink, with different tradeoffs in preparation, flexibility and waste. Start with the volume you drink and the work you want to repeat every day.
Compare complete routines
On a narrow screen, scroll the table sideways. Keyboard users can focus the table region and use the arrow keys.
| Approach | Daily task | Main constraint |
|---|---|---|
| Sealed pod or capsule | Load the correct capsule, select the drink, empty used capsules and clean | The exact capsule system and available serving sizes. |
| Reusable filter in a compatible machine | Measure grounds, fill the filter, brew, empty and wash | Filter revision, brewer model and permitted dose/grind. |
| Manual pour-over | Heat water, measure coffee, pour and clean | Your time and a suitable kettle, filter and stable receiving vessel. |
| Small immersion brewer | Measure, steep and separate grounds using the device instructions | Capacity, filtration and the cleaning routine. |
If several people want different coffee, individual servings may simplify choice. If everyone wants the same coffee together, compare a small batch brewer as well. Include the time spent making consecutive cups.
Match the exact machine and consumable
Write down the complete model name from the machine before buying capsules or a reusable filter. Similar brand names can cover distinct brewing systems. For example, Nespresso's Vertuo capsule page specifies use with Vertuo machines; Original is a separate capsule family.
Reusable filters also change. The current Keurig My K-Cup product listing, checked September 11, 2026, describes an updated design with K-Brew+Chill compatibility and excludes K-Crema. Confirm the filter version and your exact brewer against the current listing and instructions. Broad compatibility wording in older answers can describe an earlier product.
Check the permitted fill and grind in the accessory instructions. A filter that physically enters the holder still needs the intended clearance and flow path. Follow the machine's removal and cleaning procedure rather than adapting an unsupported accessory.
Measure the drink you want
Measure your usual mug to its comfortable fill level, leaving room for milk if you use it. Match that volume to the machine's supported selections and clearance. A tall travel mug may fit only when a removable tray is out; establish that from the exact manual.
If a large drink tastes thin, compare a supported smaller brew at the same coffee dose before buying stronger-sounding capsules. Increasing water through a fixed dose changes the recipe. With a reusable filter, change one permitted variable at a time and keep the manufacturer's fill limits.
Manual brewing offers more control over dose and water, but it also transfers those choices to you. Record coffee grams and water grams so that a successful cup can be repeated.
Calculate the consumables you actually use
Use your actual dose and receipts. Include the time you are willing to spend emptying and washing a filter. The comparison worksheet has room for both recurring costs and practical requirements.
Choose a disposal and cleaning routine you will follow
Check local collection rules and the capsule maker's instructions for the exact packaging. Separate coffee from packaging only when the accepted process requires it; materials and programs differ. A recycling symbol alone does not establish that your local collection accepts the item.
For reusable systems, plan where wet grounds go and how the filter dries. Grounds can join a balanced compost mix in appropriate quantities. Maintain the brewer on its specified schedule, including any separate cleaning and descaling tasks.
The best fit is the routine you can perform consistently: suitable coffee, a compatible system, enough drink, and a manageable cleanup.