Filter jugs and French presses: a guide to tea, coffee, and water.

Filter jugs and French presses: a guide to tea, coffee, and water.

Drinking good coffee, a well-infused tea, and having "clean" tasting water at home is usually less about brands... and more about the right equipment + the right water + a simple maintenance routine .

In Portugal, tap water is potable , but it may have an odor, taste, color, or turbidity in some cases, which affects consumer perception. Furthermore, the overall monitored quality remains at very high levels (indicator “safe water” at an excellent level).
That's where filter jugs and dispensers with filters come in: they don't "replace" water safety, but they can improve taste/odor and help reduce limescale (great for kettles, washing machines, and steam irons).

At the same time, if you want hot drinks with aroma and body—without capsules—the French press (also called a "plunger coffee maker") is a classic choice. In Portuguese, " French press" is commonly translated as "prensa francesa".

Let's get down to business: how to choose well.

1) Teapot/infuser, French press, and filter pitcher: what does each one solve?

Teapot / teapot with infuser (for tea and infusions)

Ideal for:

  • Loose leaf tea (black, green, oolong)

  • infusions (chamomile, mint, fruits)

  • Serve 2–6 cups at a time.

Strengths:

  • better control of infusion time (you remove the infuser and "stop" the extraction)

  • great experience at the table

French press (for coffee and infusions)

Known for providing body and a "full" flavor. The "base" recipe recommends:

  • coarse grinding

  • water ~93°C

  • time ~4 minutes

  • Typical ratio within 1:10 to 1:16 (coffee: water, by weight)

Strengths:

  • excellent cost/benefit ratio

  • You don't need paper filters.

  • Coffee with natural oils (more texture)

Filter pitcher / filter dispenser (water)

Typical objective:

  • improve taste and odor (e.g., chlorine)

  • help reduce limescale (carbonate hardness)

  • In some models/cartridges, reduce certain metals such as copper and lead (depending on the system).

Important and honest note: domestic filters vary widely. The "best" is the one with clear statements of what it reduces and, ideally, certifications /performance standards for those claims.

2) Water is the most underrated “ingredient” (and it changes everything)

Two simple ideas:

  1. Tea and coffee require water with a good taste . Even when the water is safe, chlorine (when present) can interfere with the aroma. Many filtration systems focus precisely on this point.

  2. For tea, in addition to quality, temperature is important: common recommendations indicate around 90–98°C for black tea and ~80°C for green tea .

3) How to choose: size, materials and practicality

3.1 Size (correct capacity = actual use)

  • 1–2 people: teapot 600–900 ml; tamper 350–600 ml; pitcher 2–2.5 L

  • Family: teapot 1–1.5 L; press 800–1000 ml; dispenser 5–8 L (type “pitcher with tap”)

3.2 Materials (flavor, durability and safety)

Typical options:

  • borosilicate glass (beautiful appearance, neutral taste)

  • Stainless steel (durable; great for infusers)

  • ceramic (very stable in temperature; excellent for tea)

And for plastic parts (lids, nozzles, taps, handles):

  • Seeking food-grade certification and compliance with EU regulations for materials in contact with food .

  • Important additional point: the EU has adopted strong measures on BPA in food contact materials, with specific regulations.

3.3 What makes life easier (and avoids wrong purchases)

  • Removable infuser (fine mesh)

  • Press with filter that is easy to disassemble (for cleaning).

  • a pitcher that fits in the refrigerator

  • filter replacement indicator (on the cartridge/jar, if present)

4) Filter jugs: what they typically "reduce" and how to compare them.

A clear example (and useful for choosing the right filter logic): cartridges based on ion exchange resin + activated carbon can reduce hardness (limescale) and certain metals ; and activated carbon acts on substances that affect taste, such as chlorine (when present).

Certifications / standards: how not to fall for marketing hype

If you see references to standards, understand them as follows (practical summary):

  • NSF/ANSI 42 : "Aesthetic" improvements (taste/odor, chlorine, etc.)

  • NSF/ANSI 53 : Reduction of certain contaminants with an impact on health (e.g., specific claims such as lead, etc.)

  • NSF/ANSI 401 : Some "emerging contaminants" (varies by product)

It's not mandatory for a pitcher to have this, but it helps a lot when you want to compare products.

Cartridge change: golden rule

To maintain performance, many manufacturers recommend regular replacement. A common example: replace at least every 4 weeks (and/or per liter filtered, depending on water hardness and consumption).

5) French press: how to get the coffee right (without bitterness)

A "safe" recipe to start with (you can adjust it to your liking later):

  • coarse grind (like "coarse salt")

  • Hot water ~ 93°C and infusion ~ 4 min

  • Stir gently, press slowly, and serve immediately (do not leave it "cooking" in the jar).

6) Quick checklist (smart shopping)

For teapot/infuser:

  • right capacity (real use)

  • removable infuser and fine mesh

  • Secure handle and tight-fitting lid

For French press:

  • thick glass/firm structure

  • Removable filter (easy to clean)

  • capacity aligned with its doses

For filter pitcher/dispenser:

  • cartridges easy to find in PT

  • clear indication of what it reduces (chlorine/limescale/metals)

  • Simple replacement routine (4 weeks/liter)

FAQ

1) Is tap water in Portugal safe?
It is considered potable and is monitored, with national indicators at an excellent level.

2) So why use a filter pitcher?
Because water can have a taste/smell (e.g., chlorine when present), and a filter can improve the experience and help reduce limescale.

3) How often should I change the filter in the pitcher?
Always follow the manufacturer's instructions; a common example is at least every 4 weeks (or per liter).

4) Does a French press make stronger coffee?
It generally gives it more body . Time and grind size greatly influence it: start with a coarse grind and ~4 min.

5) Can I make tea in a French press?
You can (especially with infusions), but for delicate teas, a teapot with an infuser is usually more practical for "stopping" the infusion at the right consistency.

6) What temperature should I use for green and black tea?
Common recommendations: black tea 90–98°C and green tea ~80°C (and adjust to taste and tea instructions).