Replied by Ted (Bangkok, Thailand)
It's best to prepare each time it is taken so that it remains fresh and free from spoilage. Once the ACV's acidity is neutralize its shelf life is reduced considerably and hence I always prepare it each time I need it.
It is usually sensible when taking acv and baking soda the first time that it is taken just twice a day instead of three times a day. Once the body gets used to it a couple of days, then it maybe increased to three times a day.
