Washing Machine: 4 Items You Shouldn’t Wash Like Normal

A quick wash between two appointments: press a button, job done - that’s how laundry works in most homes. Until the drum suddenly starts vibrating, the machine bangs loudly, or your favourite jumper comes out barely recognisable. When that happens, it’s rarely a “broken” appliance; much more often, a few delicate items are being treated like everyday washing, even though they simply don’t cope with life in the drum.

Why some items push the washing machine to its limits

A washing machine drum may look tough, but it isn’t a safe. It spins, accelerates and brakes - and anything hard, heavy or unevenly weighted thumps against the inside with every rotation. During the spin cycle in particular, the forces on the bearings, suspension and drum ramp up dramatically.

At the same time, the laundry takes a hit: fine fabrics snag, fibres are overworked, and shapes start to distort. The same culprits show up again and again in many households: metal parts on underwear, heavy shoe soles, delicate wool fibres, and materials that trap water like a sponge.

"If you wash everything ‘as usual’, you’re more likely over time to end up with a vibrating machine, worn bearings and clothes that age faster than they need to."

Three warning signs suggest the machine is being overloaded:

• unusually loud banging or rumbling
• a spin cycle that repeatedly stops or seems to “hunt” for balance
• clothing that comes out clearly misshapen, stretched or snagged

In those moments, more detergent or a harsher programme won’t fix it. What helps is clearer separation: what can the machine genuinely handle - and what needs special care?

Problem 1: Bras - tiny metal parts, big drum damage

Bras look harmless, yet inside the machine they can cause surprising disruption. Hooks catch on other garments, pull threads and tear lace. Even more risky are underwires: they can bend under constant movement, snap through the fabric and end up in the drum like small metal pins.

Once loose, the wire can scrape along the inside, leaving marks, and at high spin speeds it can strike the metal like a miniature hammer. In the worst case it slips through the drum holes into the outer tub, where it can jam the pump or the heating element.

"A single bent bra underwire can ruin the bra and also trigger costly damage to the machine."

How to protect bras and the drum

• always put bras in a laundry bag
• fasten the hooks so they can’t snag
• choose a gentle programme with a low spin speed
• avoid the tumble dryer; dry flat instead

If you own particularly expensive lingerie, go one step further and wash it by hand in lukewarm water. It takes a few extra minutes, but it noticeably extends the life of the pieces.

Problem 2: Shoes - when the machine turns into a shaker table

Trainers and fabric shoes are being put in the washing machine more and more for convenience. It can be handy - but in the drum those heavy soles become rolling battering rams. They slam into the drum and door window, make the appliance “walk”, and create major imbalance.

For the machine, that means quicker bearing wear, stressed suspension, and electronics that constantly detect imbalance and cut spin cycles short. The shoes don’t fare much better either: glued sections can come apart, cushioning can deform, and leather or synthetic leather is more likely to crack.

How to clean shoes safely

• run shoes only in a sturdy wash bag or a dedicated wash box
• add 1–2 large towels to cushion the impacts
• set a low temperature and reduced spin speed
• wash insoles and laces separately

Hand-cleaning is even more controlled: loosen dirt with a brush, use lukewarm water with a small amount of mild detergent, then air-dry - not on a radiator, because heat can warp adhesives and materials.

Problem 3: Wool - a standard cycle can shrink your favourite jumper to child size

Wool plays by its own rules. Heat and vigorous agitation make the fibres interlock; the fabric felts and shrinks. One ordinary cotton wash can turn a well-fitting jumper into something tight and stiff.

There’s more: wool fibres are naturally elastic, but they lose that spring if they’re crushed, twisted or spun too hard. Afterwards the garment can look “tired”, hang unevenly and feel itchier.

"Wool isn’t just sensitive - it takes it personally when you treat it like a T‑shirt."

The right care for wool items

• use cold or, at most, hand-warm water
• select a wool or delicates programme
• use a dedicated wool detergent, not a general-purpose one
• spin only lightly, ideally at low speeds
• never wring out; press in a towel and dry flat

If you’re unsure, follow the care label properly. Terms like “hand wash” aren’t decorative - they’re clear warnings. A gentle wool cycle can sometimes still work, but it always carries a small risk.

Problem 4: Waterproof textiles - hidden weights in the spinning drum

Membrane jackets, rain trousers and outdoor over-trousers have a tricky feature: they don’t let water pass through, but they can hold water in folds and pockets. During washing the weight increases quickly, and in the spin cycle that trapped load often shifts to one side.

The result is severe imbalance: the drum lurches, the machine “jumps”, spin cycles stop, and the mechanics take an unusually heavy strain. The fabric can suffer too if you use the wrong products - for example, fabric conditioner, which can attack the protective layer.

How to wash waterproof fabrics properly

• wash only a few items at a time
• use gentle spinning that increases in stages
• do not use fabric conditioner
• use a specialist reproofing product if needed
• air-dry, or briefly reactivate in the tumble dryer if the manufacturer recommends it

If you notice the machine becoming unusually loud or moving a lot during the spin, stop the cycle, rearrange the items and reduce the load. That keeps the stress on the appliance within a safer range.

A quick everyday cheat sheet

Textile	Main risk	Recommended solution
Bras	bent wires, scratches in the drum	laundry bag, fasten hooks, gentle programme
Shoes	heavy impacts, imbalance, loss of shape	protective bag, towels for cushioning, low temperature
Wool	felting, shrinking, loss of elasticity	wash cold, wool programme, dry flat
Waterproof fabrics	trapped water, drum imbalance	small loads, gentle spinning, no fabric conditioner

Why a little extra effort makes financial sense

A new washing machine can easily cost several hundred pounds, and a technician repair often runs into three figures. Against that, a few simple aids are inexpensive: a laundry bag, a shoe bag, and specialist detergents for wool and technical clothing. These typically cost single figures or the low tens, and can save real money over time.

There’s also the emotional value. A shrunken wool coat that no longer fits, or trainers made unwearable after the wrong wash, are rarely replaceable like-for-like. Sorting items deliberately and choosing suitable programmes significantly extends the lifespan of each piece.

Practical routines that make laundry easier

A small “laundry zone” at home helps: one basket for delicate items, with laundry bags inside, plus a separate section for wool and technical clothing. That way, these pieces don’t end up in the standard wash in the first place. Many people also stick a short list on the machine - which programmes match which textiles, including maximum spin speed.

If you quickly check before starting whether there are bras, wool jumpers, shoes or rain jackets in the pile, you protect both the machine and your wardrobe. The key question each time is: does this item behave like a normal T‑shirt when wet - or does it bring weight, metal, special fibres or trapped water that deserves special treatment?

---