How to Cure a Bota Bag (Traditional Leather Wineskin)
A bota bag, also known as a traditional leather wineskin, is much more than a simple wine container. It is a centuries-old wine tradition that requires proper preparation before first use. This initial process, known as curing a bota bag, is essential to preserve the flavor of the wine and to extend the life of the wineskin.
In this guide from Las Tres ZZZ, handcrafted bota bag makers since 1873, we explain step by step how to properly cure a leather wineskin so you can enjoy its performance, durability, and authentic character for years to come.
Do All Bota Bags Need to Be Cured?
Not all wineskins require curing. Only traditional leather bota bags lined with natural pitch (pine resin) need this process.
Modern wineskins with plastic or latex liners do not require curing—a simple rinse with water is enough before first use.
In pitch-lined bota bags, curing helps remove the initial bitter taste that the resin may transfer to the wine.
How to Cure a Leather Bota Bag: Step-by-Step Guide
Curing a bota bag correctly ensures proper sealing, eliminates unwanted flavors, and improves overall performance. Follow these essential steps:
1. Heat the Bota Bag
To soften the pitch lining and make it workable, gently heat the bota bag. During colder months, place the bota bag in a conventional oven (never a microwave) for 5–10 minutes at 212°F (100°C).
Before heating, be sure to remove the spout, as shown in our instructional video.
This step allows the pitch to become soft and pliable, which is necessary for proper sealing.
2. Massage and Inflate the Wineskin
Once heated, the pitch inside the bota bag will have a sticky, honey-like consistency. At this point:
- Vigorously massage the entire bota bag
- Spread the pitch evenly throughout the interior
- Pay special attention to the seams to ensure full waterproofing
After massaging, gently inflate the wineskin by blowing air through the spout opening.
3. Fill the Bota Bag with Water
Next, fill the bota bag with water to slightly more than half its capacity. Lay it flat on a table so the water fully covers the internal seams.
This step allows the stitching thread to absorb moisture, tighten, and seal the seams properly.
After 24 hours, inspect the exterior:
- If any area feels damp, reheat and massage that section again
- If the exterior is dry, empty the water and let the bota bag dry completely
4. Fill the Wineskin with Wine
Now fill the bota bag with a simple, inexpensive wine to just over half capacity. This wine is not meant to be consumed.
Its purpose is to absorb and eliminate any remaining resin flavors or odors from the pitch lining.
Leave the wine inside for 5–6 days, keeping the bota bag laid flat and rotating it daily so the wine coats the entire interior evenly.
5. Empty and Use Normally
Discard this first wine, and your bota bag is now ready for regular use.
During the first few days:
- Change the wine frequently
- Avoid filling the bota bag completely
- Prevent the inner walls from sticking together
These simple precautions will help the leather wineskin settle properly.
Handcrafted Bota Bags by Las Tres ZZZ
What makes our leather bota bags unique is their exceptional quality and traditional craftsmanship. Each wineskin is handmade by skilled artisans who cut, mark, stitch, and assemble every piece by hand—a process we have proudly preserved for over 150 years.
Our bota bags are designed with specific curing and care requirements that ensure excellent wine preservation and long-lasting durability.
If you’d like more information about our wineskins or need help curing your bota bag, feel free to visit our website or contact us directly—we’ll be happy to help. You can also explore our online store to discover and purchase our full range of handcrafted bota bags.
Final Tip
Properly curing your bota bag wineskin doesn’t just improve the taste of your wine—it allows you to fully experience an authentic wine tradition. Follow these steps, and your traditional leather bota bag will remain in excellent condition year after year.