Last year I gave up on drinking anything from a plastic bottle. We have good water but I would refill a plastic bottle. Chucked them all and found single size kombucha bottles are perfect. Perfect amount for me, good quality heavy glass and a wide mouth good cap as I like to keep one at bedside.
This is the brand and bottle. Local grocery store carries it. https://www.walmart.com/ip/Discontinued-GHS-GTS-KOMBUCHA-TRI-OG/51259247?wl13=2493&selectedSellerId=0&wmlspartner=wlpa