Britain authorizes acidification of fresh grapes for the 2026 harvest

Britain’s Department for Environment, Food and Rural Affairs said Friday that it has authorized the acidification of fresh grapes for the 2026 harvest, an exceptional measure meant to help producers manage fruit quality after climatic and environmental conditions affected natural acidity.

Defra said the authorization allows acids to be used to adjust the acidity of grapes harvested in 2026. The department said the step is being taken under regulations that allow exceptional measures in certain circumstances. According to the government notice, the authorization applies only to the 2026 harvest.

The measure covers growers in Great Britain, including England, Scotland and Wales, according to the government publication. Defra said the aim is to support grape producers as they deal with variable conditions that can change the natural balance of the fruit.

Acidity is a basic quality factor in grapes because it affects balance, stability and the suitability of the fruit for processing. When acidity is too low, producers can face problems meeting technical and product standards. Defra said the temporary authorization is intended to help ensure that grapes from the 2026 harvest can meet the required standards for quality and safety in food production.

The department did not present the move as a permanent rule change. Instead, it described the decision as a harvest-specific authorization within the current legal framework for food and agricultural products. That means producers may use the measure for this year’s crop under the terms set out by the government, rather than as a standing practice for future harvests.

The decision is likely to matter most for growers and processors whose fruit has been affected by recent weather and environmental variability. Grape acidity can shift with growing conditions, and those changes can directly affect how the fruit performs in production. By authorizing acidification for the 2026 crop, the government is giving producers a legal tool to correct those imbalances when needed.

Defra’s notice was published on GOV.UK on Oct. 2. The department said the authorization was made in line with existing rules that permit such action in exceptional cases, and framed the step as a way to protect product quality while maintaining compliance with legislation.

The announcement adds a technical but important adjustment to the regulatory conditions facing Britain’s grape sector this harvest. For producers handling the 2026 crop, it sets out a clear route for using acidification lawfully where natural grape acidity has been affected by the season’s conditions.