"In Japan, cherry blossoms are often used as a garnish or ingredient in traditional dishes such as sakura mochi (sweet rice cake wrapped in a cherry blossom leaf) and sakura tea (tea made with cherry blossom petals).
However, it is important to note that not all cherry blossoms are edible. Some varieties may be toxic and should not be consumed."
that being said, do your homework, reach out to foraging breweries/restaurants/herbalists/foragers, study up on which ones you can use and start small before ramping up. also of note, the surest way to get on the FDA's radar is by mentioning this beer on any social media or advertisements. if it doesn't make any of the FDA's lists of what is safe to consume (no matter how many decades/centuries of herbal lore/use there may be), the FDA will be contacting you. i know from experience.
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Gino Guerrero
Barrel Program Wrangler
Beerburg Brewing
Austin TX
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