Hydrogen peroxide – the same stuff you can pick up ... it’s very difficult and expensive to obtain peroxide in concentrations above 3% or so. That’s alright with [Charlie], though, because ...

Make a 10% hydrogen peroxide solution (stronger than the others 3% solutions!) in a spray bottle. Spray the plants, letting ...

Read more: How To Keep Your Sponges Clean If you're wondering what type of hydrogen peroxide to keep on hand for oil spills ...

But we need to make larger systems, and over the next year we plan to scale up to about 100 kilos a day and also increase the concentration significantly above 0.3%. From a high level, we want to ...