Attorney-General Jarrod Bleijie has introduced changes to the Liquor Act.

Selling alcohol from supermarkets remains illegal, but Chinese cooking wine and soy sauce, both of which include alcoholic food additives, have been officially excluded from the act.

"These amendments will provide greater certainty for retailers around which products they may and may not sell without a liquor licence," Mr Bleijie said.

But Mr Bleijie made it clear the government would not accept people suddenly getting wild on the soy.

"If it becomes apparent that one of these is misused or abused for the purpose of becoming intoxicated, the bill allows for the substance to be prescribed in the Liquor Regulation as a substance to which the Liquor Act will apply," he said.

Car park booze-ups outside licensed venues are formally out, unless the licensee has been granted approval from the Commissioner.

Alcohol cannot be sold or consumed in the carparks of pubs, clubs and other venues and approvals will only be granted for specific applied for times. 

Craft beers will now be able to be sold at promotional events.

Mr Bleijie said it was important for local producers to be able to spruik their wares at events highlighting the state's food and wine industries, so brewers would now be able to receive a licence for the duration of the event, or receive a permit.

Community clubs can now sell take-away alcohol to all patrons, not just members, while florists will be able to include a bottle of alcohol in gift baskets, without having to prepare a risk-management plan.

Police will be able to enforce the liquor act and anyone taking alcohol into or out of an event which has a community liquor permit or a commercial public event permit will now be committing an offence.

Mr Bleijie said the bill found the "right balance" between regulation and promoting growth, innovation and productivity.