Hello Migros_sorgiM, thank you for submitting the bottle.
We tasted both our retained samples and the bottle you sent in. Both tastings were flawless—there was neither an unpleasant odor nor any off-flavors such as rancid, herbal, or musty.
In addition, we reviewed the raw materials used to produce this batch, as well as the chemical analyses from the day of production. All results were flawless. The manufacturing and production process, as well as the storage of the pallets (in a light-protected cellar), also met our high quality standards.
Based on these results, there is no indication that the taste issue identified is attributable to our production. However, a possible cause could be improper storage at the store, for example, in a location that is not sufficiently protected from light or heat. Storing the product near a source of heat or light can cause the lemon flavor to oxidize more quickly and slightly alter the taste.
We assume that this is an isolated incident. Nevertheless, we are keeping an eye on the matter. Best regards, your M-Infoline Team