4 ms·From what I've seen, it's become more popular recently (last 10 years).by ZenoArrow 9y agoFrom what I've seen, it's become more popular recently (last 10 years).nugi 9y agoIts a technique older than guitars, not recent at all. Maybe you just took notice?disantlor 9y agowell at the very least the technique has been packaged/marketed as “torrefied wood”, and i think that’s what is being referenced here