Cheap but efficient disinfectant / biocide for home lab
The Amazon website gives the composition of Peressigsaure/Alkohol: Inhaltsstoffe pro 100g:

● 19g 2-Propanol

● 5g Ethanol

● &lt;1% Wasserstoffperoxid

● &lt;1% Peroxyessigsäure

● &lt;1% Essigsäure

Working time 30 seconds, shelf life 12 months.

Don't expect that H2O2 plus acetic acid to give peroxyacetic acid. The full Wikipedia reference is:

Peracetic acid is produced industrially by the autoxidation of acetaldehyde:[2]

O2 + CH3CHO → CH3CO3H


It forms upon treatment of acetic acid with hydrogen peroxide with a strong acid catalyst:[3]

H2O2 + CH3CO2H ⇌ CH3CO3H + H2O


Making the peroxy acid can be done from acetic acid, but requires a strong acid catalyst (to generate CH3CO+).

So, you will have to get peroxyacetic acid from somewhere in some form, in addition to your other chemicals. Duplicating this formula requires more isopropanol than ethanol, but either alcohol should perform equally.

An overview document titled Chemical Disinfectants at https://www.cdc.gov/infectioncontrol/guidelines/disinfection/disinfection-methods/chemical.html mentions two chemical sterilants are available that contain peracetic acid plus hydrogen peroxide (i.e., 0.08% peracetic acid plus 1.0% hydrogen peroxide [no longer marketed]; and 0.23% peracetic acid plus 7.35% hydrogen peroxide. This document also lists the benefits of H2O2, peracetic acid, alcohol(s) and chlorine bleaches. And formaldehyde! About peracetic acid, it says: It is considered unstable, particularly when diluted; for example, a 1% solution loses half its strength through hydrolysis in 6 days, whereas 40% peracetic acid loses 1%–2% of its active ingredients per month. 

As regards explosivity, a document of ECETOC at http://www.ecetoc.org/wp-content/uploads/2014/08/JACC-040.pdf gives the formulas of two cleaners as:

1: PAA 15%,H2O2 23%,HOAc 16%,H2O 45% and

2: PAA 15%,H2O2 14%,HOAc 25%,H2O 42%. 

I gather from these two formulations that they and anything less in H2O2 or PAA would not even remotely be explosive. No alcohol was listed in these formulations.

Now if you could obtain either of these concentrated sterilants, you would have a reasonable ratio of peracetic acid, H2O2 and acetic acid. The only item missing would be the alcohol. Let's use ethanol, at 70% (or 69%, if you must). The peracetic acid cleaners would have a good shelf life because of their high concentrations. When you need to make up some sterilant, you could take ~800 grams of ethanol and add ~350 grams of the cleaner you choose to get 1 L of final sterilant (density ~1.150 g/cc), which will be 69-70% ethanol, 4.5% PAA, 4.3-7% H2O2, 7.6-4.9% HOAc, remainder H2O.

These levels are 5 or more times higher than the concentrations listed for Peressigsaure?Alkohol Pro, so you could consider adding much less of the peracid cleaner to get in the range of 1% PAA and H2O2.

Overall, it seems that H2O2 by itself is good at killing bacteria, and so is alcohol, by itself, and so is peracetic acid, by itself, but PAA is not stable for long at low concentrations (12 months at 1%??). 

And perhaps it would be easier to buy the Peressigsaure/Alkohol Pro, or one of the other sterilants offered by that company, because it already comes in a spray bottle.