3.2.7. How was indigo produced?

The indigo villages were usually around indigo factories owned by planters. After harvest, the indigo plant was taken to the vats in the indigo factory. Three or four vats were needed to manufacture the dye.

Indigo production began at indigo villages where the factories were situated close to the fields. After harvesting the indigo plants, they were transported to the factory. Here, several large containers, called vats, were used to process the plants into dye. This indicates that indigo production was a significant operation requiring special facilities.

Think of how modern food factories process raw ingredients into products we buy at the store. Similarly, indigo factories took raw plants and turned them into a usable dye through a series of steps.

Each vat had a separate function. The leaves stripped off the indigo plant were first soaked in warm water in a vat (known as the fermenting or steeper vat) for several hours. When the plants fermented, the liquid began to boil and bubble.

The first step in dye production involved soaking the indigo leaves in warm water, allowing them to ferment. This fermentation process helped extract the color from the leaves. As the mixture fermented, it would bubble and eventually separate into layers, indicating that the dye was being released from the plant material.

Imagine making herbal tea. You steep tea leaves in hot water, and after some time, the flavors and colors are released. Similarly, fermenting indigo plants allows their color to escape into the water.

Now the rotten leaves were taken out and the liquid drained into another vat that was placed just below the first vat. In the second vat (known as the beater vat), the solution was continuously stirred and beaten with paddles.

After fermentation, the next step involved removing the plant material and transferring the liquid into a second vat, called the beater vat. Here, the liquid was stirred constantly, which helped to further extract the indigo dye from the solution and facilitate its separation.

Consider making a smoothie. Once you blend everything together, you often stir it to get the perfect consistency. In this stage, the workers stirred the indigo liquid to maximize the dye extraction.

When the liquid gradually turned green and then blue, lime water was added to it. The liquid was drained off and the sediment – the indigo pulp – transferred to another vat (known as the settling vat), and then pressed and dried for sale.

At this stage, when the solution changed color to blue, lime water was added to enhance the dye's quality. The blue dye would settle at the bottom as pulp, separating from the liquid. After draining off the excess liquid, the pulp was moved to a different vat where it was pressed and dried into blocks, ready for sale.

This process is similar to making cheese. After curdling milk, you drain the whey, press the curds, and let them dry to form cheese. This transformation results in a product that can be packaged and sold.

When the crop was delivered to the planter after the harvest, a new loan was given to the ryot, and the cycle started all over again. Peasants who were initially tempted by the loans soon realised how harsh the system was.

After the harvest, the ryots, or farmers, delivered the indigo to the planter. To finance future crops, they were often given loans by the planters. This created a cycle of dependence where ryots, drawn in by the loan system, found themselves caught in a continual cycle of debt and cultivation pressure.

Think about when someone takes out a loan to buy a car. They may feel good at first, but the ongoing payments can become overwhelming, tying them to a financial obligation they can't escape from—a similar situation for the ryots with their cycle of loans for indigo production.

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