The New Timed Oxi Dispensers

Oxygen bleaches, both perborate and percarbonate work perfectly well with enzymes. Indeed many of the first laundry pre-soaks such as Biz, and Axion were nothing more than perborate bleaches with enzymes.

Today all manner and sort of oxygen bleaches, from CloroxII, to Vanish, to FleckenSaltz, to Napisan all contain enzymes.

The only reason one could possibly see for an oxi-bleach dispenser is for when using very long wash cycles and one is washing colours, to keep contact time short to prevent fading.

However many if not most TOL laundry detergents are loaded with enzymes, and have oxygen bleaching systems. So not sure what benefit delaying adding even more oxygen bleach is going to have.

When it comes to bleaching with oxygen bleaches, unless one is using boil wash temps, longer contact time greatly benefits the bleaching action. Enzymes work best with a temperature range of 100F to 120F though many detergents now boast enzyme performance from 85F to 140F, so again not sure what purpose delaying adding enzymes would have as again, longer contact time give better results, especially if one is going to be allowing the washing machine to heat water to hot or boiling wash temperatures.


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Post# 274841 4/12/2008 at 14:30 (5,854 days old) by frigilux (The Minnesota Prairie)
Checkrate/Likes I've seen these advertised on Whirlpool and Kenmore front-loaders. Does anyone know at which point in the cycle the oxi is dispensed? Why doesn't one just add it with detergent at the beginning of the wash period? I thought oxygen-based cleaners worked best the longer it was in contact with the fabric. Gimmick (remember those dry-clean settings on dryers a few years back?) or a real advantage?

Post# 274842 , Reply# 1 4/12/2008 at 15:04 (5,854 days old) by askomiele (Belgium Ghent)
Checkrate/Likes Those home dry-clean things are out of the market in belgium, there is no store where you can find them, so buying a dryer with that kind of gimmick??? never:p And now on toppic... strange but AEG had a 4th place for every special stainremoving powder, never seen such things in the supermarket. Yet still think that oxi-powders should be there at the beginning of the cycle so they can work long enough

Post# 274847 , Reply# 2 4/12/2008 at 16:04 (5,854 days old) by logixx (Germany)
Checkrate/Likes I think oxygen bleach and enzymes don't go together too well so the idea is to add the "bleach" later in the cycle when the water is hotter. Our washer (Electrolux) has a Stain button - when it's used it'll flush the pre-wash compartment (we don't have the fourth compartment like some AEG's do) as soon as the temps hits 104�F. It also extends the cycle by 10 minutes.

Post# 274869 , Reply# 3 4/12/2008 at 19:38 (5,854 days old) by westtexman (Lubbock, Texas)
Checkrate/Likes *I don't know about all of this . .* I think we should check with our resident expert Launderess about this. She would know most about whether one should mix oxy bleach and enzymes. Seems to me the Germans, Brits and others have been doing it for years in the Euro detergents with good results. Perhaps this is more marketing hype than anything? Bryan

Post# 274872 , Reply# 4 4/12/2008 at 19:59 (5,854 days old) by launderess (Quiet Please, There�s a Lady on Stage)
Checkrate/Likes Oxygen bleaches, both perborate and percarbonate work perfectly well with enzymes. Indeed many of the first laundry pre-soaks such as Biz, and Axion were nothing more than perborate bleaches with enzymes. Today all manner and sort of oxygen bleaches, from CloroxII, to Vanish, to FleckenSaltz, to Napisan all contain enzymes. The only reason one could possibly see for an oxi-bleach dispenser is for when using very long wash cycles and one is washing colours, to keep contact time short to prevent fading. However many if not most TOL laundry detergents are loaded with enzymes, and have oxygen bleaching systems. So not sure what benefit delaying adding even more oxygen bleach is going to have. When it comes to bleaching with oxygen bleaches, unless one is using boil wash temps, longer contact time greatly benefits the bleaching action. Enzymes work best with a temperature range of 100F to 120F though many detergents now boast enzyme performance from 85F to 140F, so again not sure what purpose delaying adding enzymes would have as again, longer contact time give better results, especially if one is going to be allowing the washing machine to heat water to hot or boiling wash temperatures.

Post# 275060 , Reply# 5 4/14/2008 at 09:39 (5,853 days old) by runematic (southcentral pa)
Checkrate/Likes I believe that the oxi is dispensed in the prewash.

Post# 278478 , Reply# 6 5/5/2008 at 15:16 (5,831 days old) by rolls_rapide (.)
Checkrate/Likes I had an AEG that had the Stain option and a fourth compartment in the drawer. That was for the Oxi powders, like Vanish. The idea was (as I understood it) that the temperature of the water would rise from cold and the laundry would be washed as normal with the usual detergent. On reaching the desired temp (say 60 degrees C), the Oxi powder was automatically added and instantly became effective at the hotter temperature. The machine then prolonged the wash at this temperature, allowing the additional bleach the chance to remove stubborn stains. I personally found that adding those 'wonder additives' did nothing but foam up the drum. Waste of money. Best sticking to a quality detergent.