Bring Your Own Bottle, or BYOB, a initiative by NutriAsia, launched last July 30, 2019, is set to run until December 31, and will be open Mondays through Sundays, 1200NN to 0800PM, situated right beside The Mind Museum in BGC.
Please refer to this previous post: https://thehungrychefph.com/2019/08/06/nutriasias-bring-your-own-bottle-initiative/ for BYOB mechanics, procedures, and prices.