The Kombucha Company Large Kombucha SCOBY |16 Ounce Bottle of Strong Live Kombucha Starter Tea Cultures | Makes 1 Gallon | 2 Cups Mature Starter Tea https://www.amazon.com/dp/B07FB9V17W/ref=cm_sw_r_cp_api_glt_i_1KZVKM4BSQ53T9H9CZKK?_encoding=UTF8&psc=1
Cheapest option if you can't get some starter tea for free from someone you know, is to buy a bottle of GT's raw kombucha. That's all you need. Don't spend the $20 or $30 odd bucks that people on amazon want to charge you (like this garbage: https://www.amazon.com/Kombucha-Brewing-Strong-Starter-Cultures/dp/B07FB9V17W/). A bottle of GT's or HealthAid is $5 or so and perfectly fine to start brewing with.
Fairly new brewer here. I’ve had pretty good luck with this kombucha kit
The Kombucha Company Large Kombucha SCOBY |16 Ounce Bottle of Strong Live Kombucha Starter Tea Cultures | Makes 1 Gallon | 2 Cups Mature Starter Tea https://www.amazon.com/dp/B07FB9V17W/ref=cm_sw_r_cp_api_glc_fabc_HNHeGbTP7Y0Z2?_encoding=UTF8&psc=1
You’ll wanna get a gallon glass jar. I’ve heard the ones with a spout at the bottom are rly helpful but I’ve never used them. I don’t like to fill the entire gallon jar just so I have room for my scoby so this makes 3 L (.79 gal).
I got my starter on amazon. Great experience with it! The Kombucha Company (amazon)