The electric kettle is one of the most used (and most underrated) appliances in the kitchen: we switch it on for our morning tea, an evening herbal tea, filter coffee or to speed up countless everyday tasks. Yet not all kettles are the same, and choosing one that suits your habits makes a real difference to time, energy use and the quality of your drinks.
A well-chosen model lets you heat only the water you need, reach the ideal temperature for each drink and enjoy an appliance that is safe and easy to clean. In this guide we look at the key criteria to weigh up before buying, and at how the Haier I-Master range meets each of these needs.
Before buying an electric kettle, there are a few key factors to weigh up so you don't end up with a product that is poorly suited to your habits.
The maximum capacity determines how much water you can heat at once, but it is often the minimum capacity that makes the real difference to your bill.
This is the most important criterion, and the one that sets a basic kettle apart from a quality one. Not every drink should be made with water at 100°C: green tea turns bitter if scalded, filter coffee is at its best around 90-96°C, while milk and baby food call for lower temperatures.
As a guide, here are the recommended temperatures for the most common drinks:
| Drink | Recommended temperature |
|---|---|
| Milk and baby food | around 40 °C |
| Green tea, white tea, matcha | 70-80 °C |
| Oolong and delicate dark teas | 80-90 °C |
| Filter coffee / pour over | 90-96 °C |
| Black tea, herbal teas and infusions | 95-100 °C |
Power determines how quickly the water reaches the temperature you want. More watts mean less waiting, especially in the morning or when you have guests.
A kettle is used every day: quality materials and easy maintenance are what make you love (or loathe) the appliance over time.
Haier I-Master kettles do more than simply heat water: they bring together features designed to help you get every drink at the right temperature.
Heat as little as a single cup
Water stays hot for up to 12 hours
From 7 levels to full temperature control
Descaling at the touch of a button
Removable and washable, in stainless steel
Connected via WiFi, with dedicated recipes
A kettle's energy use depends far more on how you use it than on power alone. Here is how Haier models can help you day to day:
The I-Master range comes in two models, designed for different needs. Here is a comparison to help you choose:
| Model | Specifications | Key features | Ideal for |
|---|---|---|---|
| I-Master Series 5 – HKE5A 001 | 1.7 L; 2200 W; 40-100 °C (7 levels); min. 0.25 L. |
Stainless steel, removable limescale filter, keep-warm function, audible alert, hOn App content. | Anyone looking for a straightforward yet precise stainless-steel kettle for everyday family use, with excellent value for money. |
| I-Master Series 7 – HKE7W 001 | 1.3 L; 2000 W; 40-100 °C; min. 0.25 L. |
Vacuum double wall (hot for up to 12 h), 21 automatic programmes, LCD screen, WiFi + hOn App, Auto Clean programme. | Anyone who wants the full package: precise brewing, remote control and thermal insulation. |
Straightforward and precise.
Stainless steel, 7 temperatures and a single-cup minimum capacity for everyday use.
Connected and insulated.
Vacuum double wall, 21 programmes and WiFi for maximum control.
A good kettle usually has a power output of between 2000 and 2400 W: this is the range that ensures fast boiling without excessive power draw. Haier I-Master models deliver between 2000 and 2200 W depending on the model. Bear in mind, though, that how efficiently you use it depends above all on the amount of water you heat, not on power alone.
It depends on your habits. A 1.7-litre model, like the Series 5, is versatile and well suited to families; a more compact 1.3-litre one, like the Series 7, is ideal for couples or small kitchens. Minimum capacity matters too: Haier kettles start from 0.25 litres, so you can heat just a single cup.
Every drink has its ideal temperature: around 70-80°C for green tea, white tea and matcha, 80-90°C for oolong, 90-96°C for filter coffee and 95-100°C for black tea, herbal teas and infusions. Milk and baby food should be around 40°C. A kettle with adjustable temperature, like the Haier models, lets you select the right value for each.
Stainless steel is generally preferable: it is more hard-wearing, does not pass any taste to the water and offers a greater sense of hygiene and solidity. Haier I-Master kettles also use stainless steel for the removable, washable limescale filter.
Limescale is removed by descaling regularly, using suitable products or solutions based on vinegar or citric acid. A wide opening and a removable lid make manual cleaning easier. The Series 7 includes a dedicated Auto Clean programme that simplifies the job.
Yes, some models have keep-warm functions. The Series 7 goes further: thanks to its vacuum-insulated double wall, it keeps water hot for up to 12 hours, so you don't have to reboil it.
Energy use depends on how much water you heat and to what temperature. Heating only the amount you need is the sensible choice: this is where the 0.25 L minimum capacity of Haier kettles is a real advantage, as is the vacuum insulation of the Series 7, which avoids unnecessary reboiling.
