Natural wines are more difficult to define, and are not certificated in the way biodynamic wines, for example, are. They are farmed organically or biodynamically, hand-harvested and 'transformed' without the addition or removal of anything in the cellar. No additives or processing aids are used, and intervention in the naturally occurring fermentation process is kept to a minimum. Neither fining nor filtration are employed. The result is a wine full of naturally occurring microbiology. Essentially, it's about using what one was given, with the wine evolving naturally to be whatever it will be.