Steam pressure
The maximum steam pressure provided by the iron in constant steam mode. The higher the steam pressure, the better the iron handles with thick fabrics that are poorly permeable to moisture. Note that most modern irons have a steam boost function — in this mode, the steam pressure almost doubles for a short time. Therefore, for domestic use, in most cases, a pressure of 3-4 bar will be sufficient, such irons can easily cope with ordinary fabrics, and for especially thick ones, you can use a steam boost. But in the professional field, it is recommended to use models with more powerful steamers.
Steam supply power
The steam supply power provided by an iron is essentially the amount of steam supplied by the device per minute. In most modern irons, the intensity of steaming can be adjusted, so this item usually indicates the maximum power value.
The more steam the iron supplies, the more intense the effect on the fabric, the more dense and rigid materials can be effectively smoothed out without resorting to a steam boost (see below). On the other hand, high performance significantly affects the price, dimensions and weight of the iron. Accordingly, it is worth choosing according to this indicator taking into account the planned method of application — especially since the full power of steam is far from always required, and in special cases the same steam boost can be used.
In travel and simple household irons, the productivity is about 15 – 30 g/min. More than 30 g/min corresponds to enhanced steaming, and the most advanced devices, mainly for professional use, are capable of producing 60 g/min or more (the so-called “turbo mode”).
Steam boost power
The steam power supplied by the iron in boost mode.
The steam power is the amount of steam the iron produces per minute. See above for more information on the general meaning of this parameter. And the steam boost mode is a mode of enhanced steaming, when the iron practically “shoots” with a boost of steam; "shot" is usually made by pressing a special button. Steam boost allows you to achieve an intense effect that is not available with conventional steaming; such an impact can be useful, for example, to smooth out heavily rumpled fabrics that would be difficult to deal with in other ways.
A steam boost of 100 g/min or more is said to be sufficient to handle most tough and "unruly" materials. And
models with a powerful steam boost from 200 g/min will definitely not leave even the most dense fabric rumpled. However, there are models with more modest indicators — they are quite suitable for those who need an iron for ordinary household ironing. Moreover, high power, usually, affects the cost. Do not forget about irons with a steam generator, where the performance values are higher, since the purpose of the iron is slightly different.
Heating time
The time it takes the iron to go into working condition. In the case of classic household appliances, this is the time for heating the sole to the required temperature, which depends on the selected mode. For models with a steam generator, this is the time required to heat the water in the boiler.
