Some natural winemakers add sulfites, a chemical produced naturally in grapes.

一些酒师会添加亚硫酸盐，这是葡萄中自产生的一种化学物质。

Extra sulfites can help preserve, or keep, the wine.

额外的亚硫酸盐有助于葡萄酒的保存。

At the same time, sulfites, which are added to wine as preservatives, also take their leave.

此同时，作为防腐剂添加到葡萄酒中的亚硫酸盐也随之消失。

And he found that ferrous sulfite, when rubbed over it, would make it appear.

他发现当将亚铁硫酸盐涂抹其上时，它就会显现出来。

No consumption of carrageenan, sulfites, or MSG.

不含卡拉胶、亚硫酸盐或味精。

They're not adding additives or sulfites to the wines, as more traditional winemakers would typically do.

他们没有向葡萄酒中添加添加剂或硫化物，而这在更为传统的酒师中是常见的做法。

A second type eats these electrons and converts sulphate  into sulfite that is then eaten by a third microbe and so on.

第二种类型消耗这些电子，并将硫酸盐转化为亚硫酸盐，后被第三种微生物食用，以此类推。