The curiosity to explore the use of ozone for sterilizing wood was sparked by an article showcasing its effectiveness in eliminating insects and bacteria in grain storage bins. Despite the considerable size of these bins, brief treatments ranging from 3 to 8 hours were sufficient to achieve 100% eradication rates of various insects using relatively low concentrations of ozone. However, the challenge of re-infestation emerged when eggs hatched later. Notably, higher temperatures improved the kill rate, likely due to the increased respiration rates of the insects.

Given that many insects harmful to trees create holes, tunnels, and often reside near the very porous phloem, it seemed plausible that ozone could penetrate effectively into the wood after it has been turned.

Ozone's Impact on Wood Bleaching and Color Change

One article briefly mentioned using ozone for wood bleaching, though it lacked detail. Another source discussed altering the color of violin wood with ozone but provided few specifics. It was noted in a music forum that combining ozone with lignin generates nitric acid, potentially making the wood brittle. Unfortunately, there was no information on the treatment duration or ozone strength used for color modifications. Considering that the wood in violins is much thinner compared to turned wood, the effects might differ significantly.

Ozone Penetration in Wine Barrel Sterilization

An article on sterilizing wine barrels demonstrated that ozone could effectively penetrate the wood's cellular structure, further supporting its potential application in woodturning projects.

Alternatives to Traditional Wood Treatment Methods

While I was familiar with boiling wood or prolonged soaking to prevent cracking, I sought quicker alternatives. My Swedish uncle's sawmill practice involved soaking log booms in the lake for months, a technique also adopted by a Dutch company that immersed logs for a year. The theory was that saturation influenced the lignin, thereby reducing stress on cellulose during drying and preventing cracking. This lengthy process could also help reduce insect infestations, but scientific validation of these claims remains uncertain.

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