Solar Distillation of White Wine to Obtain Brandy

Aim: The aim of the research was to replace gas energy with renewable solar thermal energy in a white wine distillation process to obtain brandy. Theoretical background: Almost all distillers of spirits in the world use conventional energy that produces carbon dioxide, solar energy in this distillation process is an environmentally friendly alternative. Method: In this study, a reused ck-002 parabolic solar cooker was used and the wine was obtained from a fermentation of Italian white grapes. In each distillation, the black painted still was filled with 4 L of wine. When distilling, solar energy was compared to liquefied petroleum gas (LPG) energy. The distillation tests were carried out from 10:00 to 14:00 h under ambient conditions. Results and conclusion: The solar distillation time was 140 min and its boiling temperature in the receiving of the spirit was between 88 to 93 °C, in the gas cooker the time was 240 min and boiling temperature was 84 to 93°C. The heating of the still using solar energy was homogeneous with respect to the gas cooker. Solar energy presents a good alternative to replace gas energy in the distillation process to obtain brandy, reducing its cost without producing CO2. Implications of the research: To look for alternatives that can substitute gas energy, such as solar energy, which produces less negative impacts on the environment. Originality/value: The use of solar distillers is a technology that will reduce the production of CO2.