I found these pages on the subject, and I think the conclusion is clear: Go right ahead!
Personally I'd go for one or two teaspoons 35% hydrogen peroxide per five gallons of water.
Please be careful with the perxoide, wear safety glasses and rubber gloves if at all possible.
If you feel your skin going slippery like with soap, rinse immediatly with generous amounts of water. I'm sure that it will be safe to use as a no-rinse disinfectant, just let it drip off.
You can check these links for more information:
http://www.lenntech.com/water-disinfection/disinfectants-hydrogen-peroxide.htm
http://www.ozoneservices.com/articles/008.htm
Best regards and happy homebrewing!
Christian Rahbek
Good Read!
But before you go ahead. read this:
Second link is especially good but there is some questions i still have about 3% to disinfect. Is the 3% you can get in the drug store a diluted version of "Technical Grade Hydrogen Peroxide" or is it something else? Based I this link
http://www.h2o2-4u.com/grades.html
I believe it is something else.
Top of page it says:Hydrogen peroxide is produced and distributed in number of different grades and concentrations.
Commonly known 3% and 6% H2O2 which can be found in almost every drug store has its place in your medicine cabinet, however it is not considered to be suitable for any applications outlined in this text.
Bottom of page it says:Additional Uses For
35% Technical Grade Hydrogen Peroxide
(To dilute to 3% solution - Mix 11 parts of distilled water with 1 part 35% H2O2 )
To freshen kitchen: Keep a spray bottle of 3% H2O2 in the kitchen. Use to wipe off counter tops and appliances, it will disinfect and give the kitchen a fresh smell.
In the dishwasher: Add 50 ml (2 oz.) of 3% H2O2 to your regular washing formula.
House plants: Add 30 ml (1oz.) of 3% H2O2 in liter of water. Use to mist plants.
Laundry: Add 250 ml (1 cup) of 3% H2O2 in place of bleach.
Humidifiers and Steamers: Mix 500 ml of 3% H2O2 to 4 liters of water.
Facial: Use 3% H2O2 on a cotton ball after washing. Avoid eyebrows and eyes.
Detox Bath: Use 250 ml (1cup) of 35% H2O2 to a tub. Soak at least for 30 minutes
Question is, can you get 35% food grade peroxide in small enough quantities that dont have other chemical stabilizers added?
Just throwing this out there.