Batch Variation
Differences between production runs of the same fragrance, sometimes discussed in terms of colour, scent or performance. A perceived difference needs its own comparison and explanation.
Batch variation refers to differences between production runs of a product sold as the same fragrance. It is distinct from a planned reformulation or a separate concentration, such as an EDT beside an EDP.
Colour is one possible difference. In an earlier FAQ, Escentric Molecules acknowledged that its fragrances could have slightly different colour tones between batches. That example concerns appearance; it does not establish that every visible difference changes the scent or that manufactured aroma materials always give identical-looking liquid.
For a useful comparison, start with the full product name and concentration, then keep the samples and application conditions as similar as practical. Note what you notice at the opening and later in wear, and repeat on another day if the result will affect a purchase.
Keep any batch code and packaging details when asking the maker about a bottle. They can help identify what you are comparing. A code or an online ranking of batches is less useful than knowing whether you enjoy the actual sample you can buy.