Introduction

A still is a device used for centuries to separate components in a liquid using the distillation process. Typically, it uses heat and evaporation to separate substances with different boiling points. Building your own still can seem like a daunting task, but there are several methods you can use to create an effective still. In this article, we’ll explore three ways to build a still: the simple pot still, the column still, and the water purification still.

1. Simple Pot Still

The simplest type of still is the pot still, which consists of a large pot and a condensation coil or tube to collect the distilled liquid. These components can be made from readily available materials like stainless steel or copper.

Steps:

– Obtain a large stainless steel or copper pot with a tight-fitting lid.

– Drill a hole in the lid and attach copper tubing or coil through it.

– Seal any gaps with high-temperature-resistant silicone or Teflon tape.

– Connect the other end of the tubing to another container where the condensed liquid will be collected.

– Place your mixture in the pot and heat it, causing vapor to rise and flow through the tubing.

– Once cooled, the vapors condense into liquid and flow into your collection container.

2. Column Still

A column still uses columns filled with packing material like copper mesh or glass beads to create large surface areas for vapor interaction. This method increases purity and efficiency for more complex distillation tasks like making alcohol.

Steps:

– Obtain a boiler or pressure cooker for heating your mixture.

– Attach a column (either pre-made or DIY) using high-temperature gaskets to seal connections.

– Fill column with your chosen packing material for increased vapor interaction.

– Install a condensation coil or tube at the top of the column and connect it to your collection container.

– Ready safety equipment like pressure relief valves if required.

– Heat your mixture, vapor rises through the column and interacts with the packing material.

– Condensation occurs at the top and flows into the collection container.

3. Water Purification Still (Solar)

A solar still uses sunlight to evaporate contaminated water, leaving contaminants behind and collecting clean distilled water. This process can be helpful in emergency survival situations or for off-grid living.

Steps:

– Dig a hole with a slight slope in a sunny area, approximately 3 feet deep and 5 feet wide.

– Place a container in the center of the hole at the lowest point.

– Drape a transparent plastic sheet over the hole and secure it around the edges with dirt or rocks.

– Add contaminated or saltwater around the container without mixing it.

– Place a small stone on top of the plastic sheet above your container to create a low point for condensation droplets to collect and drip into your container.

– As sunlight shines through the transparent plastic, water evaporates and condenses on the sheet. It then drips into your collection container, leaving contaminants behind.

Conclusion

Building your own still can lend you self-sufficiency in creating purified water, essential oils, and even alcohol. By understanding these three methods and their applications, you are one step closer to mastering the art of distillation. Remember to adhere to safety protocols when operating any stills and to follow local regulations regarding their use.