Definiton of natural wine
Here is a definition of natural wines.
Natural wines are wines where non-invasive farming methods and non-interventionist vinification allows for the best expression of the terroir and the vintage.
Desirable vineyard practice
The objective is to attain a healthy vineyard where the vines develop their resistance to disease. Chemicals are eschewed, every effort is made to ensure that the soil is alive with nutrients and mineral content.
No chemicals may therefore be used except very light doses of copper and sulphur mixture.
Natural solutions should always be sought to natural problems
Biodiversity should be encouraged at every opportunity and habitats for insects, bugs, birdlife and flowers be allowed to thrive.
The vine is part of a polyculture – the land and the countryside must be respected
Dynamic remedies may be used to nurture and bring the vineyard to optimum health such as natural manures, homeopathic remedies and biodynamic treatments
Other vineyard practices that may be encouraged
Travail du sol
Promotion (where possible) of indigenous grape varieties
Hand harvest and selection of fruit
Respect for variability of vintages
Seeking maturity and balance
Desirable winery practice
To carry out fermentation with the fewest possible additions or subtractions
Healthy grapes sorted before vinification
Wild yeast ferment
No added enzymes
No additions or subtraction (addition of acids, sugar, dealcoholisation - “reverse osmosis)
No or very light filtration
No or very light fining
Minimal sulphur used (total sulphur less 20g/l white wines; less than 10g/l for red wines)