Money Tips. Counterfeit notes are common in Peru, so always hold bills up to a light source and look for a watermark to ensure their authenticity. ATMs are found throughout the country, and offer some of the best exchange rates, though they may not accept all types of debit and credit cards.
The fermentation lock or airlock is a device used in beer brewing and wine making that allows carbon dioxide released by the beer to escape the fermenter, while not allowing air to enter the fermenter, thus avoiding oxidation. There are two main designs for the fermentation lock, or airlock.
fermentation-a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol.fermenting, zymolysis, zymosis, ferment.ermentation. n. 1. (Biochemistry) a chemical reaction in which a ferment causes an organic molecule to split into simpler substances, esp the anaerobic conversion of sugar to ethyl alcohol by yeast. Also called: ferment.