Microfibre against Swedish dishcloths

Microfibre is a split synthetic yarn, and the split is what does the picking up. E-Cloth publishes the composition on both of its kitchen cloths: 80 per cent polyester and 20 per cent polyamide, with the scrubby corner of the kitchen cloth at 85 and 15 12. Full Circle’s Water-Works set is the same construction from recycled feedstock, at 80 per cent recycled polyester and 20 per cent polyamide, which the page puts at about six diverted bottles 3.

The Swedish dishcloth is older than the plastic one and considerably simpler. Wettex dates it to 1949 and to the Swedish engineer Curt Lindquist, who put a sponge through a meat grinder, flattened the result and mixed it with cotton; his wife Margareta named it by merging wet and textile 7. If You Care publishes 70 per cent cellulose and 30 per cent unbleached cotton 5, and Papaya publishes the same split 9.

At end of life those two paths separate completely. Cellulose and cotton are compostable, and every cellulose brand here says so 56410. Polyester and polyamide are not, and no kerbside stream takes a used cleaning cloth. Full Circle’s microfibre page nonetheless describes the range as “sustainable, reusable, recycled and recyclable, even shareable, compostable” on the same page that gives the composition as 80 per cent recycled polyester and 20 per cent polyamide 3. We are reporting what the page says, not what anyone meant by it.

Microfibre sheds plastic in the wash. That much is settled. How much it sheds is not, and the published numbers are further apart than any single headline suggests.

Napper and Thompson laundered polyester, polyester-cotton and acrylic in a domestic machine and estimated 137,951 to 728,789 fibres from a 6 kg load, depending on the fabric, with released fibres measuring 11.9 to 17.7 micrometres across and 5.0 to 7.8 mm long 11. Vassilenko and colleagues washed consumer apparel and reported loss of 9.6 mg to 1,240 mg per kilogram of textile per wash, an estimated 8,809 to more than 6,876,000 fibres, with mechanically treated polyester shedding around six times more than woven nylon and an 850-fold spread between the lowest and highest shedding textiles they tested 12.

The third study is the one that should make anyone cautious about a single number. Volgare and colleagues washed the same 100 per cent polyester T-shirts at different load sizes and got 401 mg per kilogram at a 0.15 kg load and 76 mg per kilogram at 2.50 kg, or 4,766,338 down to 1,041,736 fibres per kilogram. Same fabric, same machine, a fivefold difference from the load size alone. Their own conclusion is worth quoting: differences in the methods used to quantify release, “and especially in parameters like washing load, make difficult the comparison between the results” 13.

So the honest summary is a range, not a figure. Across these three studies release runs from under 10 mg to over 1,200 mg per kilogram of textile per wash, and from fewer than 10,000 fibres to nearly 7 million. Anyone quoting one end of that as the number is quoting a study, not the field.

The cellulose brands publish numbers and the microfibre brands publish promises. If You Care claims absorption of up to 20 times the cloth’s own weight and machine washing up to 300 times at up to 190°F (88°C) 5. Wettex claims 15 times its weight and one cloth in place of up to 15 rolls of paper towels 6. Papaya claims one sheet in place of 17 rolls, and 2 to 3 months of average use rising to 6 to 9 months 89. Skoy claims 15 times its weight and full compostability, and does not state what the cloth is made of 10.

E-Cloth’s durability claim is a guarantee rather than a measurement, and the two kitchen cloths carry the same one: 1 year or 100 washes 12. Set that against If You Care’s 300 washes 5 and the two categories are claiming lifespans that differ threefold, in opposite directions to what most people would guess.

None of the pages on either side names a test method for any of it. Absorbency multiples, wash counts and paper towel equivalences are all published without a standard attached, which makes them comparable within a brand and not between brands.

Kitchen textiles carry bacteria whatever they are made of. Gerba and colleagues sampled 82 used kitchen hand towels from households in five cities and found coliforms in 89.0 per cent and E. coli in 25.6 per cent, with the presence of E. coli related to how often the towel was washed 15.

What the evidence points at is drying, not fibre. Møretrø and colleagues inoculated dishwashing sponges and brushes with Salmonella and stored them differently: brushes left hanging carried roughly 3.3 log fewer Salmonella than items kept humid in a plastic bag, while sponges stayed heavily colonised whichever way they were stored, and total counts in used items ran from a median of 7.0 to 10.3 log10 cfu 14. The item that dried between uses came out ahead of the item that stayed wet.

That reframes the microfibre bacteria claim. E-Cloth’s “over 99 per cent of bacteria” figure describes what the cloth lifts off a surface using water 12. It is not a statement about the cloth staying clean afterwards, and neither material is self-sterilising. A cloth wrung out and hung up dries; a cloth left balled in the sink does not.

Per cloth, on the published prices, the cellulose side clusters tightly: Wettex at $1.37 a cloth in a 4-pack 6, If You Care at $1.40 in a 5-pack 5, Full Circle at $2.00 in a 3-pack 4. Microfibre runs higher per unit: $3.20 a cloth in Full Circle’s set of five 3, and $7.99 for a single E-Cloth General Purpose Cloth 2. Papaya sits apart from both at $9.00 a sheet 8.

Lifespan reverses the ordering, and this is where the arithmetic gets interesting. Take each brand at its own published claim. An E-Cloth guaranteed for a year at $7.99 is about 67 cents a month 2. An If You Care cloth rated for 300 washes at $1.40 is cheaper still if you get anywhere near the claim 5. A Papaya sheet at $9.00 lasting the stated 2 to 3 months is $3.00 to $4.50 a month 8. A Wettex cloth at $1.37 replaced monthly is $1.37 a month 6.

Those are the brands’ own numbers rather than ours, and the assumption doing the work is that a cloth reaches its claimed life. On the published figures the gap between the cheapest and dearest option here is roughly sevenfold a month, and it does not fall neatly on either side of the material question.

Not throw it away. A cloth in a drawer sheds nothing, and a cloth in landfill has already cost what it cost to make. Shedding happens in the wash, so the levers are all about washing.

• Wash it less often and dry it between uses instead. Hanging beat storing damp by about 3.3 log for Salmonella on a dishwashing brush 14, and it removes wash cycles from the count.
• Wash it in a full load rather than a small one. Release per kilogram fell from 401 mg to 76 mg as the load went from 0.15 kg to 2.50 kg on the same fabric 13.
• Consider a filter or a bag if you wash a lot of synthetics. Devices tested by Napper and colleagues reduced release by between 21 and 78 per cent, a spread wide enough that the specific device matters 1617.
• Use it until it fails, then replace it with whichever material you have decided on. Retiring a working cloth early converts a shedding problem into a manufacturing one.
• Treat the numbers as directional. None of the studies above washed a dishcloth.

If avoiding shed plastic is the point, the cellulose cloth does that by construction, composts at end of life, and costs less per cloth. If durability per item is the point, the microfibre guarantee is longer than the cellulose brands’ replacement rhythm, though shorter than If You Care’s published wash count. And whichever you pick, the hygiene answer is the same one: wring it out and hang it up.

Nothing here has been washed, wiped or measured by us. It is a record of what eight manufacturers published on 21/08/2026 and what the peer-reviewed literature reports, including the parts where it disagrees with itself.