

Cork stoppers are commonly used to close bottles of wine and some types of beer. Here is some information about it:
Defect:
Corks are traditionally used to close wine bottles. Corks come from the bark of Portuguese oak or cork. Their flexibility and the ability to seal the bottle are appreciated among winemakers. Corks allow a little air exchange, allowing the wine to mature and evolve in the bottle. However, there is a risk of "cork contamination" which can cause off-taste in the wine.
Beer:
Some specialty beers, such as Belgian lambics and bottled beers, may also be capped. In such cases, the cork may serve to allow a certain amount of refermentation in the bottle, which contributes to the flavor and aroma of the beer.

Jars:
Corks can also be used to close jars, especially in the context of home production or food storage. While not as common as metal or plastic stoppers, they can be used to hold certain foods.
It is worth noting that the use of cork plugs has some advantages and disadvantages. The advantages are aesthetics, tradition and long shelf life, especially in the case of high-quality wines. Disadvantages include the risk of cork contamination, the difficulty of opening the bottle without the proper tools, and potential sealing issues that can lead to loss of product quality.
In recent years, due to some limitations and risks associated with cork stoppers, many vineyards and breweries are looking for alternative ways to close bottles, such as screw caps, plastic corks or lace caps.
Using bottle corks
as rod floats is a creative and economical idea that is sometimes used by anglers, especially those who are looking for simple and cheap solutions. A float (also known as a float) acts as a beacon on the water, letting the angler know when a fish has taken the bait.
Here are some things to know about using bottle corks as floats:
Balance: Depending on the size and type of cork, proper balancing may be required to keep the float upright in the water. This can be achieved by adding the appropriate amount of weights or by balancing the cork itself.
Durability: Some plugs may be less durable than traditional floats, especially if the fish is larger or more aggressive. That is why it is worth choosing corks with appropriate strength for a specific fishery and fish.

Visibility:
Bottle corks may be less visible on the water compared to specially designed floats with more vivid colors. This can make it difficult to see when a fish has taken the bait.
Anchoring: It is important that the float has the proper ability to "anchor" on the water, i.e. maintain a stable position. Some plugs may have trouble staying stable in stronger currents.
Depth adjustment: Depending on the type of cork, it can be more difficult to accurately adjust the depth of the bait. Professional floats often use depth adjustment systems, which can be less precise with bottle stoppers.
All in all, using bottle corks as floats is an interesting and economical option, but it can come with some challenges. It is worth experimenting and adapting this idea to your individual fishing needs.