"During prohibition, it was legal for an individual to make their own alcohol products for 'personal use.'"
This is absolutely false.
You are absolutely incorrect.
Just from the first page of Google ~ search criteria ~ "18th Amendment" "personal use"
In response to the massive outcry of many Americans against alcohol consumption, Congress passed the 18th Amendment in 1917. It banned the commercial production and sale of alcohol in America. The Volstead Act was ratified in 1920 and expounded on the actual implementation of Prohibition. It also mandated several loopholes in alcohol production and consumption. Physicians could prescribe alcohol and it could be consumed for religious purposes. Additionally, a head of household was legally allowed to produce 200 gallons of wine a year for personal use. This was largely a concession to the significant Italian-American electorate.
http://www.goarticles.com/cgi-bin/showa.cgi?C=20425
In January 1919 the 18th Amendment was ratified, establishing national Prohibition one year later. The possession of alcohol for personal use is still permitted; enforcement authorizations are kept minimal and left to the states.
http://www.tc.columbia.edu/centers/cifas/drugsandsociety/background/chronologydruguse.html
The 18th Amendment became law all over the country on January 16, 1919. One year later, the Volstead Act, named after Congressman Andrew Volstead of Minnesota, was passed to enforce the amendment. Prohibited beverages were those containing more than 0.5 percent alcohol. However, liquors sold for sacramental, industrial and medicinal purposes, and fruit or grape beverages prepared for personal use in homes, were exempt from the law. And so, the era known as Prohibition began on January 16, 1920.
http://www.epcc.edu/nwlibrary/borderlands/19_prohibition.htm
I expect you to go mute on this issue. However, if you wish to dig a deeper hole, I'd be happy to bury you in it.
PS ~ Don't take this response personal. I just hate to see bad information disseminated.