Sodium Percarboante grams to litre ratio?

jayrussell · Jan 31, 2019

So I've gone for pure sodium percarbonate to clean my stainless steel fermenter. Theres no instructions with it and the ratio seems to be varied online. Ive gone with 5g a litre, so filled my 25l fermenter up and stuck in 125g to leave overnight, is that about right or a little excessive?

Bigcol49 · Jan 31, 2019

Hi @jayrussell
Why are you soaking overnight? Is it particularly dirty or covered in dried crud?

Mavroz · Jan 31, 2019

I don't measure it.
I just put a quick pour from the container it is in (can judge the same amounts I use now) into the bucket or FV, cover with scalding water then top up.
Makes fingers feel silky and small nicks or cuts on the hands sting a bit.

Bigcol49 · Jan 31, 2019

Mavroz said:
Makes fingers feel silky and small nicks or cuts on the hands sting a bit

Hi!
I always wear surgical gloves when using oxi-type cleaners. They do dry out the skin with even short periods of immersion.

terrym · Jan 31, 2019

Bigcol49 said:
Hi!
I always wear surgical gloves when using oxi-type cleaners. They do dry out the skin with even short periods of immersion.

Good choice. athumb..

It seems sodium percarbonate can be nasty stuff under the right conditions, which presumably is down to the release of hydrogen peroxide when it comes into contact with water. Like in your eyes, on open wounds etc etc ....
https://atpgroup.com/wp-content/uploads/2018/01/Sodium-Percarbonate-Kingsfield-SDS.pdf

Ghillie · Jan 31, 2019

Can't say I give it much thought. A couple of heaped table spoons for the 35L kettle maybe?

I don't use it that much anymore if I'm honest, I really should to keep that stainless shiny!

Clint · Jan 31, 2019

I use a couple of heaped tablespoons and lots of hot water....stubborn stains or crud on the stainless get left to soak for half hour and rubbed with a plastic type scourer. The plastic fv gets the same start and a wipe round with tough kitchen paper...do not use scourers.

lancon · Feb 1, 2019

I think that hot water is quite important when using it, 60c is recommended but I tend to have it hotter, good cleaner for most stains.

Mungri · Feb 1, 2019

I used to buy mine from our LHBS, the instructions said 3-4 teaspoons per 10 litres of hot water. Same as others I get it from Ebay now at 1/3 of the price.