Most people associate the concept of innovation with modern technology – new cell phones, cooking gadgets, medical devices, video game graphics, safety features for cars, etc. However, when it comes to whiskey, sometimes in order to make something seem new, the innovation is informed by techniques that are centuries old. That is how a technique as old school as solera maturation became part of the modern whiskey renaissance.
https://thewhiskeywash.com/whiskey-science/solera-whiskey-real-historic-fraction/