La Marzocco Linea Micra
| Maker | La Marzocco |
|---|---|
| Boiler | Dual boiler |
| Brew boiler | 0.25 L |
| Steam boiler | 1.6 L |
| Water tank | 2 L |
| Plumb-in | Switchable (plumb-in kit sold separately) |
| Voltage (US) | 110V |
| Maker's water filter | Not listed |
What water does this machine require?
La Marzocco publishes 14 limits our water check uses for this machine. Each is quoted in the maker's own words below.
| What | The maker's limit | Where it comes from |
|---|---|---|
| Total dissolved solids (TDS) | 90–150 ppm | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Total dissolved solids (TDS). |
| Total dissolved solids (TDS) | 90–150 ppm | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Total dissolved solids (TDS). |
| Chloride | 0–30 ppm | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Chloride. |
| Chloride | 0–30 ppm | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Chloride. |
| pH | pH 6.5–8 | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for pH. |
| pH | pH 6.5–8 | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for pH. |
| Iron | 0–0.02 ppm | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Iron. |
| Iron | 0–0.02 ppm | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Iron. |
| Free chlorine | 0–0.05 ppm | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Free chlorine. |
| Free chlorine | 0–0.05 ppm | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Free chlorine. |
| Total chlorine | 0–0.1 ppm | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Total chlorine. |
| Total chlorine | 0–0.1 ppm | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Total chlorine. |
| Total hardness | 70–100 ppm as CaCO3 (70–100 mg/L as CaCO3, our conversion) | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Total hardness. |
| Total alkalinity | 40–80 ppm as CaCO3 (40–80 mg/L as CaCO3, our conversion) | La Marzocco's guidance for its range, which it says covers this machine. The maker's words for Total alkalinity. |
Shown, but not used to decide (14)
- Total hardness, 70–100 ppm. The maker's figure doesn't say what it's measured as. We're verifying it; until then it doesn't decide. The maker's words for Total hardness.
- Total alkalinity, 40–80 ppm. The maker's figure doesn't say what it's measured as. We're verifying it; until then it doesn't decide. The maker's words for Total alkalinity.
- Total hardness, 70–100 ppm as CaCO3 (70–100 mg/L as CaCO3, our conversion). Guidance the maker gives as an ideal, a recommendation or a care tier, not as a limit. The maker's words for Total hardness.
- Total alkalinity, 40–80 ppm as CaCO3 (40–80 mg/L as CaCO3, our conversion). Guidance the maker gives as an ideal, a recommendation or a care tier, not as a limit. The maker's words for Total alkalinity.
- Free chlorine, 0–0.05 ppm. Guidance the maker gives as an ideal, a recommendation or a care tier, not as a limit. The maker's words for Free chlorine.
- Total hardness, 70–90 ppm as CaCO3 (70–90 mg/L as CaCO3, our conversion). Guidance the maker gives as an ideal, a recommendation or a care tier, not as a limit. The maker's words for Total hardness.
- Total dissolved solids (TDS), below 150 ppm. Guidance the maker gives as an ideal, a recommendation or a care tier, not as a limit. The maker's words for Total dissolved solids (TDS).
- Total dissolved solids (TDS), at least 75 ppm. Guidance the maker gives as an ideal, a recommendation or a care tier, not as a limit. The maker's words for Total dissolved solids (TDS).
- Chloride, at most 30 ppm. Guidance the maker gives as an ideal, a recommendation or a care tier, not as a limit. The maker's words for Chloride.
- Langelier saturation index (derived), 0.1–0.7. Guidance the maker gives as an ideal, a recommendation or a care tier, not as a limit. The maker's words for Langelier saturation index (derived).
- pH, pH 6.5–8. Guidance the maker gives as an ideal, a recommendation or a care tier, not as a limit. The maker's words for pH.
- Total hardness, 70–100 ppm (our conversion of the maker's 7–10 °fH). We're verifying this requirement; until then it doesn't decide. The maker's words for Total hardness.
- pH, pH 6.5–8.5. We're verifying this requirement; until then it doesn't decide. The maker's words for pH.
- Chloride, below 30 mg/l. We're verifying this requirement; until then it doesn't decide. The maker's words for Chloride.
Will my water work with this machine?
Add your water from a test strip, a report or your city's numbers, and we'll check it against the maker's limits above. It stays in this browser.
The maker's water guidance
From La Marzocco's general guidance.
Total dissolved solids (TDS): 90–150 ppm
“For optimum machine performance, the water properties should fall within the following parameters: T.D.S | ppm | 90 | 150”
Total hardness: 70–100 ppm
“For optimum machine performance, the water properties should fall within the following parameters: Total Hardness | ppm | 70 | 100”
Alkalinity: 40–80 ppm
“For optimum machine performance, the water properties should fall within the following parameters: Alkalinity | ppm | 40 | 80”
Chloride: 0–30 ppm
“For optimum machine performance, the water properties should fall within the following parameters: Chloride | ppm | 0 | 30”
pH: 6.5–8
“For optimum machine performance, the water properties should fall within the following parameters: pH | 6.5 | 8”
Iron: 0–0.02 ppm
“For optimum machine performance, the water properties should fall within the following parameters: Total Iron | ppm | 0.0 | 0.02”
Free chlorine: 0–0.05 ppm
“For optimum machine performance, the water properties should fall within the following parameters: Free Chlorine | ppm | 0.0 | 0..05”
Total chlorine: 0–0.1 ppm
“For optimum machine performance, the water properties should fall within the following parameters: Total Chlorine | ppm | 0.0 | 0.1”
Very pure water
“Water that is very pure, like distilled or rainwater, has this corrosive effect, and sometimes won’t work with the machine’s sensors, in which case it won’t fill or heat up.”
Testing
“We recommend using the water testing kit that comes with your new La Marzocco before you use the machine.”
Water filter
“La Marzocco recommends that your filtration system ... produces water with the following properties:”
Total dissolved solids (TDS): 90–150 ppm
“La Marzocco Water Specification ... T.D.S. ppm 90 150”
Total hardness: 70–100 ppm
“La Marzocco Water Specification ... Total Hardness ppm 70 100”
Iron: 0–0.02 ppm
“La Marzocco Water Specification ... Total Iron ppm 0.0 0.02”
Free chlorine: 0–0.05 ppm
“La Marzocco Water Specification ... Free Chlorine ppm 0.0 0.05”
Total chlorine: 0–0.1 ppm
“La Marzocco Water Specification ... Total Chlorine ppm 0.0 0.1”
pH: 6.5–8
“La Marzocco Water Specification ... pH 6.5 8”
Total alkalinity: 40–80 ppm
“La Marzocco Water Specification ... Alkalinity ppm 40 80”
Chloride: 0–30 ppm
“La Marzocco Water Specification ... Chloride ppm 0 30”
Softened water
“La Marzocco recommends caution when using sodium and hydrogen based ion- exchange water softeners.”
Plumbed-in water
“Suggested pressure and flow rate from water mains: 45 to 80 psi (3 to 5 bar) and 8 Liter per minute.”
Total hardness: 70–100 ppm as CaCO3
“(Optimal range suggested by La Marzocco) ... Total hardness [ppm] | | 70 | 100 ... Hardness as measured by the La Marzocco test kit is expressed in parts per million (ppm), where one part per million is defined as one milligram calcium carbonate (CaCO3) per litre of water.”
Total alkalinity: 40–80 ppm
“(Optimal range suggested by La Marzocco) ... Alkalinity [ppm] | | 40 | 80 ... One degree KH corresponds to the carbonate and bicarbonate ions found in a solution of approximately 17.848 milligrams of Calcium Carbonate (CaCO 3) per litre of water (17.848 ppm).”
Free chlorine: 0–0.05 ppm
“(Optimal range suggested by La Marzocco) ... Free Chlorine (Cl 2 ) [ppm] | | 0 | 0.05”
Total hardness: 70–90 ppm as CaCO3
“LA MARZOCCO SUGGESTED HARDNESS RANGE: 70 TO 90 PPM”
Total hardness: at least 90 ppm as CaCO3
“Total Hardness lower than 90ppm: Effects on espresso: flat body, low aromatics, little or no crema, unpleasant acidity. Effects on equipment: water becomes aggressive and may cause/speed up corrosion in combination with other additional factors.”
Total dissolved solids (TDS): up to 150 ppm
“SUGGESTED LA MARZOCCO TDS RANGE: BELOW 150PPM”
Total dissolved solids (TDS): at least 75 ppm
“TDS lower than 75ppm: Effects on espresso: weak body, tart taste. Effects on equipment: water becomes aggressive against espresso equipment’s materials and speed up corrosion phenomenon caused by other additional factors.”
Chloride: up to 30 ppm
“Chloride higher than 30ppm: Effects on espresso: increase the perception of sourness and enhance phenolic compounds and astringency. Effects on equipment: chlorides cause severe phenomenon of pitting corrosion.”
Lsi: 0.1–0.7
“(Optimal range suggested by La Marzocco) ... Langelier Saturation Index | | 0.1 | 0.7”
pH: 6.5–8
“(Optimal range suggested by La Marzocco) ... pH | | 6.5 | 8”
Total hardness: 7–10 °f
“it is important that the incoming water be of a hardness greater than 7°f (70ppm, 4°d) and less than 10°f (100ppm, 6°d)”
pH: 6.5–8.5
“pH should be between 6.5 and 8.5”
Chloride: up to 30 mg/l
“the quantity of chlorides be less than 30mg/l”
Warranty
“N.B.: Test water quality (the warranty is void if water parameters are not within the range specified in the section “installation”)”
Water type
“To ensure your machine lives a long and happy life you should be sure good water is being used with your espresso machine. Our out-of-the-box solutions for water are the following: Crystal Geyser (bottled in California or South Carolina) or any bottle of Poland Spring Reverse osmosis or distilled water with remineralization. A great option for remineralization is Third Wave Water’s Espresso Machine Profile. Use one 2-Liter packet of Espresso Machine Profile per 1 gallon of reverse osmosis or distilled water”
Warranty
“Problems relating to water damage, poor water quality and scaling: La Marzocco espresso machines come with a water test kit in order to make sure that you are using the correct water in your machine. Using water outside the La Marzocco specifications is the most common reason for machine and parts failure. Make sure you test your water and filter!”
Where to buy
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