Somewhere in the first fortnight it dawns on you that a person weighing less than the cat is generating more laundry than the rest of the household combined. Bodysuits, sleepsuits, muslins, the Moses basket sheet, the outfit that lasted forty minutes. And the advice you find is contradictory: wash everything at 60, wash everything at 30, separate baby clothes forever, don't bother separating at all, buy a special baby detergent, save your money.
The advice conflicts because it is answering different questions. Baby laundry really has only two problems worth solving: what ends up touching your baby's skin, and what gets the stains out. Get those two right and the rest is ordinary washing.
Start with the detergent, not the temperature
Newborn skin is thinner than adult skin and slower to build the barrier that keeps irritants out. Whatever stays in the fabric after the rinse sits against that skin all day and all night. So the detergent decision matters more than any other, and the standard advice across Ireland and the UK is consistent: use a non-bio detergent. Non-bio means no enzymes - the biological proteins added to shift stains at low temperatures. Enzymes are effective cleaners, but they are the ingredient most commonly implicated when sensitive skin reacts to a detergent, which is why non-bio is the default recommendation for babies. It is also worth avoiding bleaches, optical brighteners and dyes, which serve the appearance of the wash rather than the cleaning of it.
Our own laundry detergent sheets are non-bio, with no bleaches, no optical brighteners, no phosphates and no dyes, which is why we can write this guide without contorting ourselves. If you want the fuller story on what non-bio actually means, and when enzymes do earn their keep, we've covered it separately in What Is Non-Bio Laundry Detergent, and Do You Actually Need It?
What you don't need is a detergent marketed specifically for babies. Most "baby" ranges are ordinary non-bio formulas with gentler branding and a higher price per wash. Read the ingredients line, not the picture on the front.
Temperature: 40 covers almost everything
For everyday baby clothes - worn, dribbled on, slept in - 30 to 40 degrees is enough, and 40 is the sensible default while you're still dealing with milk and nappies. Save 60 degrees for the times it earns its energy cost: after illness, for bedding following a bad reflux night, and for reusable nappies or cloth wipes if you use them. And a barely-worn cardigan that came off after an hour doesn't need a hot cycle at all - a cold or 30-degree wash keeps colours and elastic in better shape, and modern detergents are built to work there. Ours works from cold through to 60 degrees, and for hand washing too.
Yes, wash new clothes before the first wear
New clothes arrive having been through factory finishing, dye baths, warehouses and a number of hands. None of that is sinister, but none of it belongs against brand-new skin either. One normal wash is enough. The same goes for hand-me-downs that have been sitting in storage - fabric picks up dust and mustiness in an attic faster than you'd expect.
You don't have to separate baby clothes forever
The main reason to wash baby clothes separately is to keep them away from a harsher detergent. If the whole household wash runs on the same non-bio detergent, that reason disappears, and baby clothes can go in with everyone else's. Keep two exceptions: anything heavily soiled gets its own hotter wash, and anything genuinely filthy from outside the house - muddy sports kit, work clothes - shouldn't share a drum with bodysuits. Otherwise, one load. You have enough sorting to do elsewhere in your life.
Baby stains are mostly protein, and that changes the method
Milk, sick and the contents of a nappy are protein stains, and protein behaves badly in heat: a hot wash cooks it into the fibre, which is how a faint mark becomes a permanent one. The routine that works is the reverse of instinct. Scrape or rinse off what you can, then rinse or soak the stain in cold water - never hot. Then pre-treat, then wash at 40. Sunlight on the line afterwards does more for the last shadow of a stain than another wash cycle will.
Where sheets fit - and the two doubts worth naming
Baby laundry is close to the ideal case for detergent sheets, mainly because of dosing. Baby loads are small and constant, and a pod is one fixed dose whether the drum is full or a third full. A sheet is perforated, so a half load gets half a sheet - you dose to the wash you actually have, which is also how you avoid detergent build-up in little clothes. Pods solved the dosing mess of liquid and kept the plastic; sheets are simply the more recent answer to the same problem.
Two doubts come up with sheets, and both deserve straight answers.
First: a thin dry sheet doesn't look like it can handle what a newborn produces. On set-in stains, no detergent format shifts them unaided - not pods, not liquid, not powder. The stain is won or lost at pre-treatment, and here sheets have a genuinely useful trick: wet a corner of the sheet and rub it directly into the stain before the wash goes on. Liquid is marginally handier to pour straight onto a stain, but a damp corner of a sheet does the same job without leaving you guessing how much detergent is left for the rest of the load.
Second: some people have tried sheets and found residue on the clothes, which would be a fair reason to keep them away from a baby. Residue from a sheet is a loading error, not a formula problem. The sheet goes into the empty drum first, then the clothes on top, so water reaches it from every side from the first minute. Tucked into the detergent drawer, or thrown on top of an already-stuffed drum, it cannot dissolve cleanly - and an overloaded machine will leave residue with any detergent format. Empty drum first, room for the load to move, and the problem disappears.
Skip the fabric softener
Softener works by leaving a film on fabric. On baby clothes that means added residue against the skin and less absorbent muslins and towels - the two outcomes you most want to avoid. Line drying or a dryer ball will keep things soft enough. This is one product the baby aisle genuinely doesn't need to sell you.
Quick answers
What temperature should you wash baby clothes at?
30 to 40 degrees for everyday clothes, with 40 as the default. Use 60 after illness, for reflux-soaked bedding and for reusable nappies. Lightly worn items are fine at 30 or cold.
What should you wash baby clothes with?
A non-bio detergent with no bleaches, optical brighteners or dyes. It does not need to be branded for babies - the ingredients are what matter, not the packaging.
Do you need to wash baby clothes before wearing them?
Yes, once. New clothes carry factory finishes and handling; hand-me-downs from storage carry dust. One normal wash deals with both.
Can you wash baby clothes with your own clothes?
Yes, provided the shared load uses non-bio detergent and nothing in it is heavily soiled. Washing separately is only necessary while adult clothes are washed in something harsher.
Do laundry sheets work for baby clothes?
Yes. They're non-bio, they tear to match small loads, and they work from cold to 60 degrees. Pre-treat protein stains with a dampened corner of the sheet, and always put the sheet in the empty drum first.
If you'd like to try sheets on baby laundry without commitment: every pack comes with a 30-day money-back guarantee, and the subscription can be cancelled any time by email or live chat, with no fees and no notice period. Delivery is next-day in Ireland and two days to the UK - which matters more than it used to, now that running out of detergent involves a small person who cannot be left unattended. The 60-sheet pack is here.