While us home brewers are pondering and discussing the pros and cons of the various ways of aerating/oxygenating our wort, there's an opportunity that's literally right under our noses to make bucket loads of cash, just by selling the same stuff we're pumping into our fermenters.
http://www.news.com.au/finance/business/retail/chinese-businessman-jack-ma-reveals-what-china-really-wants-from-australia/news-story/5315610d74b4b0a150d6087a92632f0a
http://www.news.com.au/finance/business/retail/chinese-businessman-jack-ma-reveals-what-china-really-wants-from-australia/news-story/5315610d74b4b0a150d6087a92632f0a