You keep a set of essences for many years and our essences are preserved to ensure an indefinite shelf-life. The only vulnerable part of an essence bottle is the rubber bulb on the dropper. Over a period of time, the bulb may show signs of deterioration—softening, collapsing and/or cracking. If you notice any signs of deterioration in the bulb, it's time to replace the dropper.
We are offering 1/2-oz. or 1/8-oz. size replacement droppers in packs of nine, to be used with brandy or vinegar essences. The 1/2-oz. droppers are individually wrapped and do not need to be washed. The smaller 1/8-oz. (dram) droppers will need to be washed before they can be used.