Article | REF: FPR200 V1

Butter

Author: Jean-Luc BOUTONNIER

Publication date: August 10, 2021

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ABSTRACT

This article deals with the manufacture of butter at 82% fat. After a brief description of the product and its economic environment, the various processing operations implemented and their control parameters are detailed as well as the physico-chemical composition of the butter. This article also presents in more depth the mechanisms implemented to achieve the phase inversion, which is the central operation of the manufacturing, as well as the industrial equipment which allows to transform continuously and at high output, the butter cream.

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AUTHOR

  • Jean-Luc BOUTONNIER: Retired process engineering and food science teacher, Villefranche-de-Rouergue, France

 INTRODUCTION

Butter, with 82% fat content, is a member of the solid fat family of dairy products. Together with low-fat and concentrated products, it accounts for 20% of the milk produced in France. The French are the world's leading butter consumers, with 8.2 kg/year/capita. Butter is a product defined by European regulations and a 1988 decree, last updated in 1997. A natural and gastronomic product, it is a must-have, as it can be eaten as is, or used in cooking, pastry-making, sauces, etc.

Butter is a product that dates back over 5,000 years. Basically, it's a traditional, natural product for everyday consumption, incorporating just two main ingredients: cream and lactic ferments, or even salt. For a long time, it was mainly found in countries where dairy farming existed. It was demonized in the 1950s, following the "cholesterol affair" orchestrated by American doctor Ancel Keys. However, butter was rehabilitated in the middle of the 2010s, and has regained its place in world gastronomy. Its manufacture requires, especially on an industrial scale, a continuous, high-volume machine, the butyrator, which alone transforms cream into butter by a process of inversion of the fat and skim milk phases.

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KEYWORDS

butter   |   milk fat   |   butyrator   |   phases inversion


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