Burlap bags are used for a wide variety of purposes due to their durable and breathable nature. Some common uses for burlap bags include:

1. Agriculture: Burlap bags are commonly used to store and transport agricultural products like potatoes, coffee beans, and other crops.

2. Gardening: Burlap bags can be used to create a weed barrier or to cover plants and shrubs to protect them from frost.

3. Erosion control: Burlap bags can be filled with sand or other materials and used to control erosion on hillsides or along riverbanks.

4. Storage: Burlap bags can be used to store items like firewood, clothing, or toys.

5. Crafts: Burlap bags are often used in craft projects like making wreaths, bags, or other home decor items.

6. Gift wrapping: Burlap bags can be used to wrap gifts or as gift bags.

7. Animal feed: Burlap bags can be used to transport and store animal feed and supplements.

8. Decorations: Burlap bags can be used as a rustic or vintage decoration for events like weddings, parties, or festivals.

Burlap bags go by a variety of names depending on the specific use or location. Here are some common names for burlap bags:

1. Gunny sack: This is a common term for a large burlap bag used for carrying agricultural products, particularly grains.

2. Hessian bag: Hessian is a term used in some countries, particularly the UK, to refer to burlap.

3. Croker sack: This term is commonly used in the southern United States to refer to burlap bags.

4. Potato sack: This term specifically refers to burlap bags used to transport potatoes, but it has become a more general term for any large burlap bag.

5. Coffee bag: This term refers to burlap bags used to transport coffee beans.

Overall, the specific name for a burlap bag may vary depending on the region, culture, or specific use.

Burlap bags are not completely waterproof, but they do have some water-resistant properties. Burlap is a loosely woven fabric made from natural fibers like jute or sisal, which allows air and moisture to pass through the fabric. This means that while burlap bags can resist some moisture and light rain, they are not completely impervious to water.

However, burlap bags can be treated to make them more water-resistant. This is often done by applying a waterproofing agent or coating to the fabric. With a proper coating, burlap bags can be made more resistant to water, which makes them suitable for some outdoor uses like erosion control or protecting plants from frost.

It’s important to note that the level of water resistance of a burlap bag will depend on the specific treatment applied to it, as well as the weave and quality of the burlap fabric.