Bio washing powder. how hot before you kill it?

About 50 degrees:

What is wrong with a liquid detergent? The own brand lidl one used in this household is OK in a cold water wash and advertised on the pack down to 15C. It is also at least 50% cheaper than the equivalent well known brands.

If thinking of a hotter wash then consider many(all) machines start with a cold wash and then heat up the water. Starting with a hotter wash may "set" some stains.

If you are watering down the detergent before applying it to the detergent dispenser also watch out for the machine pumping out before starting every wash cycle. If you are using a dispensing ball etc. this may not be a problem.

Sounds like you're using the wrong powder, Try aldi, never had it fail to dissolve cold.

On 28/10/2023 18:08, Tim+ wrote: <snip>

:-)

Careful. Not all creepy crawlies are killed with lower temp washes I seem to remember a study that as the number of people cold washing increased so did the incidences of fleas, lice, scabies, bed bugs etc.

If you have any of those washing your bed sheets etc. will not cure your problem irrespective of how hot the wash. You still need to cure the problem at the mattress level.

For other problems the temperature (alone) required for a kill may not be too good for the clothes themselves. Again fleas also tend to live in soft furnishing and carpets and then jump up to bite humans.

Yeah. That's why it was couched in such wishy washy language (careful , I seem to remember etc) . I am not providing any absolutes merely stating that I remember someone else claiming a direct causality between washing temperature and beastie numbers.

Why? Which grain?

In message <ui9bp6$1v0p$ snipped-for-privacy@dont-email.me, Davey snipped-for-privacy@example.invalid writes

I wonder how many more of these old sayings are being made obsolete by powered hand tools.