Rivers French Press: Stylish Japanese Glass Dripper

If you’ve ever poured a murky cup from a French press or found too much sediment at the bottom, you’re not alone. Many coffee lovers love the simplicity of a press pot, but struggle with clarity and control. Whether you're making a quick solo brew or sharing with friends, the right French press can make all the difference.

The Rivers French press comes in 350ml (for 1–2 cups) and 640ml (for 3–4 people), with options in black, blue, red, white, and even a special matte green. The larger 640ml version even features an ultra-fine filter for cleaner extraction—improving on the classic design.

What Is the Rivers French Press?

Rivers is a Japanese-designed brand that offers a modern take on the classic French press. Its glass carafes are made in Germany using high-quality borosilicate glass, known for thermal shock resistance and clarity. The plunger, handle, and base components are manufactured in Mainland China and Taiwan. The range includes several colorways: black, blue, red, white, and a unique matte green, all in 350ml and 640ml sizes.

Why Choose a 350ml or 640ml Size?

Rivers offers two practical sizes:

• 350ml (1–2 cups): Ideal for personal use or a quick solo brew.
• 640ml (3–4 cups): Better for sharing or making a larger batch. This size also includes an ultra-fine filter that reduces sediment compared to standard French press filters.

This makes it easier to enjoy a cleaner cup without sacrificing the full-bodied immersion style that French press is known for.

How the Rivers French Press Improves on Classic Design

Traditional French presses can let fine coffee particles through the metal mesh, resulting in a cloudy cup and a gritty mouthfeel. The Rivers 640ml model addresses this with an upgraded ultra-fine filter—tighter than standard—that helps produce a cleaner, more refined brew. All models maintain the signature robust, immersive coffee flavor that French press is loved for, but with better clarity and less sediment.

How to Use a French Press (Like the Rivers Model)

To get the best results from your Rivers French press, follow these key parameters:

• Grind size: Use a coarse grind similar to coarse sea salt or chunky sugar. On an EK43, aim for setting 10.5; on a hand grinder, around 26. Too fine a grind may allow sediment to pass and over-extract.
• Brew ratio: Start with 1:15 — 15g of coffee to 225g (225ml) of water. Adjust to taste from there.
• Water temperature: Ideal range is around 90°C (194°F), or let boiled water cool for 2–3 minutes. Slightly higher temps (1–2°C more than typical pour-over) can help improve extraction due to lack of agitation.
• Brew time: Steep for 3 to 5 minutes. For medium to dark roasts, 4–5 minutes works well; lighter roasts may need closer to 3–4 minutes. Avoid going much longer to prevent bitterness.

Brew steps:

1. Remove the plunger and add your ground coffee.
2. Pour hot water (just off boil) over the grounds.
3. Stir gently to ensure even saturation.
4. Place the plunger on top (do not press yet) and let it steep for 4 minutes.
5. After 4 minutes, slowly press the plunger down.
6. Pour the coffee out steadily to avoid disturbing settled grounds.

Frequently Asked Questions

What makes the Rivers French press different from other brands?

The Rivers French press features a German-made borosilicate glass carafe for clarity and durability, with metal and plastic components manufactured in China and Taiwan. It’s available in multiple colors and two sizes: 350ml for 1–2 people and 640ml for 3–4 people. The larger size includes an ultra-fine filter that reduces sediment for a cleaner cup compared to standard French presses.

What grind size should I use for a French press?

Use a coarse grind, similar to coarse sea salt or chunky sugar. On an EK43 grinder, that’s setting 10.5; on a hand grinder, aim for around 26. A finer grind can lead to over-extraction and more sediment in your cup.

What’s the best water temperature for French press brewing?

Ideally, use water around 90°C (194°F). Let boiled water cool for about 2–3 minutes. You can go slightly higher (1–2°C more than standard pour-over temperatures) to improve extraction since there’s no agitation in a French press.

How long should I let coffee brew in a French press?

Most brewers aim for 4 minutes. Darker roasts can go up to 5 minutes, while lighter roasts may do better at 3–4 minutes. Avoid brewing much longer to prevent bitterness and over-extraction.

Does the Rivers 640ml French press filter out more sediment?

Yes, the 640ml Rivers French press includes an ultra-fine filter that’s tighter than the standard metal mesh found in most French presses. This helps reduce the amount of fine coffee particles that make it into your cup, resulting in a cleaner, smoother brew.

Which French press size is best for solo brewing?

The 350ml size is perfect for making 1–2 cups. It’s ideal for individual use. The 640ml is better suited for 3–4 people or when you want to brew a larger batch with friends.

Recommended FrontStreet Beans for French Press

For French press, go with FrontStreet Coffee’s PWN Golden Mandheling — a medium-dark roasted single origin from Indonesia with deep spice, caramel, and dark chocolate notes. Another excellent choice is Strawberry Candy Espresso, a custom blend featuring Costa Rican honey-processed and Panamanian Geisha beans, offering floral, berry, and citrus tones that shine in immersion brewing. Both develop rich body and smooth texture in a French press. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.