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Citric acid is a white, odourless crystalline powder, which naturally occurs in citrus fruits. Combined with sodium bicarbonate, it creates a fizzy and bubbly effect when put in water.

Citric acid with sodium bicarbonate forms the basis of our explosive bath bombs. When added to the water, it creates carbon dioxide which causes a fizzing action. Many colours, fragrances, essential oils, flowers and herbs can be added to make uniquely fragrant bath products. As they break down in the water, the scent of the essential oils is heightened by the fizz.

Alchemists were aware of citric acid as early as 700AD. It was first isolated in 1784 (from crystallized lemon juice) by a Swedish chemist, Carl Wilhelm Scheele. Citric acid is a naturally occurring fruit acid. In lemons and limes, it can account for up to 8% of the dry weight and has a very acidic taste.

Lush buy citric acid from European suppliers, who produce&nbsp;it from non-genetically modified vegetables and the molasses extracted from them. The molasses are&nbsp;crushed, mixed with lime and stacked in trays; the mix is then sprayed with a natural mould spore, allowing the fermenting mix to turn grey and fuzzy, becoming citric acid.

The mould used is called <i>Aspergillus niger</i>&nbsp;and is not present in the finished raw citric acid thanks to an active carbon treatment and crystallisation, which are part of the highly controlled manufacturing process.

Ingredient

Citric acid with sodium bicarbonate forms the basis of our explosive bath bombs. When added to the water, it fizzes.

Citric Acid