[lavos83]

In the Netherlands it's called water and kefir. Good stuff indeed, especially during summer and basically free at the cost tapwater. No plastic packaging either! Those hipster might actually be onto something ;)

[hetspookjee]

Kombucha is another one.

[AYBABTME]

I nearly poisoned myself making kombucha at home, despite careful sanitizing and careful monitoring of pH and temperature. As a result I'm really not fond of casual recommendations to brew kombucha. Seems easy to mess up.

[ametrau]

Kombucha is a con.