Check every care label before loading the machine. The wash-tub symbol and its bars tell you which programme each item needs, and conflicts between items are the main reason a mixed load goes wrong.

What the bars on a care label actually mean

The tub symbol with no bar underneath means a normal, full mechanical action wash. One bar below the tub signals a reduced-action cycle, suitable for easy-care fabrics such as modal, viscose, polyester and polyamide. Two bars indicate a very mild cycle with much-reduced mechanical treatment, typically used for machine-washable wool. A crossed-out tub means the item must not be machine-washed at all, regardless of what else is in the drum.

The bar system matters because programme differences go beyond temperature. A normal cotton cycle uses vigorous tumbling throughout; a reduced-action programme limits that movement to protect fibres. Putting a two-bar wool item into a no-bar cotton wash risks felting or distortion, even if both items happen to share the same maximum temperature, as GINETEX notes in its care symbol guidance .

How to group items before loading

Lay out your pile and sort into at least three working groups:

Normal cycle items (no bar): white and colour-fast cotton, linen, robust mixed fabrics. These can tolerate a full wash action and can usually be washed together if temperatures align.

Reduced-action items (one bar): easy-care synthetics, dark-coloured cotton and polyester blends marked for careful handling. The GINETEX symbol guide advises avoiding or minimising spinning on many of these to reduce creasing, so they should not share a load with heavier items that need a longer spin.

Very mild or hand-wash items (two bars or hand-wash tub): machine-washable knitwear and wool. These need a substantially reduced drum load, and the drum should be no more than one-third full according to the care guidance. Running a full cotton load and then adding one wool jumper is not the same as running a dedicated gentle programme with an appropriately light load.

In autumn, you may have a larger than usual pile of knitwear, denim and thick cotton arriving together after summer storage. That makes it especially tempting to combine them. Resist the temptation: the programme conflict is what causes damage, not the season itself.

Temperature conflicts within a group

Once you have sorted by programme type, check that temperatures within each group are compatible. The maximum temperature shown in the tub is an upper limit, not a target. If most items in your normal-cycle group are fine at 60 °C but one is marked 40 °C, wash the whole group at 40 °C rather than risk damaging the cooler item. You lose nothing by washing down; you risk shrinkage or colour loss by washing up.

Some items, particularly dark-coloured synthetics and prints, carry a 30 °C symbol. Group these with other 30 °C items rather than pulling the whole load down to the lowest common denominator when a separate small load is practical.

Spin speed and moisture left in the load

Once you know which programme each group needs, spin speed becomes relevant. A higher spin speed generally leaves clothes with less remaining moisture at the end of the wash, which is useful if you plan to air-dry, as Bosch’s washing machine buying guide explains . However, the care label sets the ceiling: reduced-action and very mild programmes often call for little or no spinning to prevent creasing or distortion, so you cannot always take advantage of a high spin to reduce drying time. If an item’s care label restricts spinning, that restriction overrides the convenience of a faster-drying outcome. For a practical look at matching spin choices to drying plans, the spin-speed guide covers the decisions you face after sorting is done.

When splitting is worth the extra wash

If your pile contains items that span three different programme types, running two smaller loads is often better than compromising on the gentler group. A one-bar easy-care load and a separate two-bar wool load each washed correctly will come out in better condition than a combined load washed on a setting that is a rough average of what each needed. Load size also matters independently: a very mild wool programme specifies a drum no more than one-third full, so crowding it with extra items to save a wash defeats its purpose.

For what comes next after washing, the indoor drying guide and the guide on drying wool outdoors in autumn cover the decisions that follow once sorting and washing are done.