(CNBC) - It's time to ditch your corkscrew. Canned wine isn't just a passing summer fad, it's a $45 million business, according to Nielson.

Wine in cans with pull-tops instead of corks isn't new, but it has become a staple for young drinkers over the last few years and the trend shows no sign of slowing down. Sales of canned wine grew 43 percent in the U.S. from June 2017 to June 2018, according to BW 166, a beverage alcohol market research firm.

While canned wine is still a tiny portion of the wider industry, with about 0.2 percent of total wine sales, it's growing rapidly thanks to millennial drinkers, according to Nielson data. By comparison, bottled wines grab nearly 90 percent of the industry's sales, but are growing much more slowly. (Boxed and bagged wines take the remaining market share.)