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Reading Time: 8 minutesLast Updated on March 27, 2026 by Paul Clayton
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Will Old 8 Pound Fishing Line Go Bad
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Ever wonder if your old, weathered fishing line has lost its touch?
You’re not alone in this sea of curiosity. Whether it’s braided, monofilament, or fluorocarbon, there comes a time when you have to put the old horse out to pasture.
Yes, even the most durable line will eventually crumble under the weight of time, much like a stale donut. So don’t be surprised if your old size line snaps at the sight of a guppy!
Remember, when it comes to fishing lines, age is definitely not just a number. So keep it fresh and keep reeling them in!
If, like me, you tend to prefer fishing during the warmer months without all the wind, rain, hail, and snow, you might store your rods and gear away in the garage while you wait for spring to begin to warm things up. Once the days are warmer, you’ll blow the dust off all your fishing gear and head out to bag yourself some crappies.
However, you might have overlooked one thing. Perhaps you head out to your favorite fishing hole, cast your line out… and suddenly you have a fish! Unfortunately, the line snaps within a few seconds, and you’re left scratching your head and wondering what you did wrong.
Not one to be easily put off, you try again, only for the same thing to happen a couple of minutes later. At this point, you know something is definitely wrong, but what’s going on?
Fishing line will go bad over time, especially if it’s not being used, stretched, and kept supple. Just like everything else in the world, with enough time, fishing lines will start to break down, lose their elasticity, and become brittle and prone to snapping.
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So, how often should you replace your fishing line, and what’s the average shelf life of the line? We recently created a piece on the various types of fishing line available, so it makes sense to follow up with an article on caring for your line and knowing when to replace it.
Many of the fishing lines available are relatively cheap, but some types, such as braided lines, cost a bit more, so knowing what line fatigue looks like and when you’re better off cutting your losses could save you time, money, and gear.
As we’ve already discussed, the fishing line definitely goes bad over time, but the length of time it takes depends on many factors, such as how often you go fishing, the environment you fish in, and where you store your gear when not in use.
I tend to stop for the year at the beginning of November and then pick things up again at the start of March, depending on the weather and how busy I am with work or other projects. At this time, I’ll generally just replace all the lines, especially if it’s just monofilament. If I have something more expensive, such as a braided line, I’ll generally check it for damage and take a few feet off the end.
It’s the ends that tend to experience the most abrasion and damage, so removing a few feet from the braided line gives me some confidence that the line is less likely to break. It’s worth noting that fishing line that has been left out in direct sunlight or is subject to heat and cold will degrade faster than normal. So this is worth bearing in mind when storing gear.
What to Look Out For?
If you’d like to understand what to look out for when inspecting your fishing line, there are a couple of easy-to-follow tips, depending on what sort of fishing line you’re using. It’s worth keeping in mind that any spare line you have in storage or in your tackle box can still go bad over time, even if it’s not currently on a reel. So if you’re going to replace your line, it’s worthwhile buying it straight from a shop.
Fluorocarbon line is much denser than monofilament and has less of a ‘memory’, which means bunching and looping are less of a concern. You’ll still need to keep an eye out for fraying, stretching, or any other sort of damage. It’s worth testing a small piece of line to see how easily it breaks. Something that snaps without any stretch is likely past its best and too brittle to use.
Finally, braided line is the most resistant to wear and tear of all the line types due to its construction, but it can still degrade. Keep an eye out for any obvious fraying or decolorization of the line. If it looks even a bit dodgy, then it’s probably past its best-before date.
How Often Should You Replace a Line?
As we’ve established above, the three types of fishing lines have
their own strengths and weaknesses, but they are all susceptible to damage over time.
Monofilament is the most prone to fatigue and damage, but it’s also the cheapest. If you go fishing often, it’s worthwhile to change the line once or twice a season. If you only go fishing occasionally, you can get away with changing it less frequently, but I would suggest changing it at least once a year.
Fluorocarbon is pretty tough stuff, so even with regular use, it should last at least a season. With less frequent fishing trips, there’s no reason this couldn’t stretch to two or more seasons; just make sure to keep an eye on it and look out for signs of wear and tear. Make sure you store it somewhere sensible when not in use to maximize its durability.
The braided line will last a long time, even with plenty of use. I have a line that’s going into the 4th season with no obvious signs of wear and tear, and I’m confident it’ll last at least another season.
Knowing when to change fishing lines largely comes down to common sense; if the line you’re using looks like it needs to be replaced, then it does. If using it is becoming a struggle, then it’s time to replace it. If you’re not confident in its abilities, then replace it.
Any signs of damage are a good indication that it should be replaced.
Disposing of Old Line Safely
So, you’ve just spent the last hour replacing all of your old fishing lines, and now you’re left wondering what you should do with the old stuff. Firstly, please be a responsible fisherman and don’t just dump the line in the bin. If you can, put the old line onto a spool to keep things tidy and much safer.
Nearly all fishing can be recycled, so if you’re planning to do anything else with it, put your old line into your recycling bin at home or take it to the nearest recycling center.
However, if you’re the crafty type or someone in your family is, fishing line is often very useful for making bracelets, necklaces, and other projects that require a thin, strong line. If you’d rather keep things fishing-related, you can always use your old line to practice tying knots, creating practice rigs, or for anything else that doesn’t need to have guaranteed strength.
If you can’t recycle your old line or use it for something else, your only option might be to put it out with the regular rubbish. Make sure the old line is firmly wound onto a spool, then secure it in place with a knot and some tape or a rubber band to keep it from coming loose. We don’t want our old line to end up around the neck of some wildlife, so do what you can to dispose of your line safely.
It’s Up To You When To Replace Old Fishing Line
Periodically replacing your line is something you’re going to want to do in order to ensure you’re not going to end up with a snapped line and no fish, especially if it just so happens to be the ‘big one’. It’s also the responsible thing to do so that you’re not leaving lengths of line and hooked fish all over the place. We’ve all seen images of turtles, dolphins, seals, and a range of other wildlife with life-threatening fishing lines tangled around their necks or flippers, don’t be the person that’s responsible for causing these horrific injuries.
Keeping a close eye on your line for fraying, color changes, and damage will go a long way toward ensuring it’s in tip-top condition. When it’s time to replace a bad line, recycle it or put it to another use around the house, but try to avoid sending your old line to a landfill, where it will spend the next century degrading. Following all of these steps will mean you’ll have more fun and ensure you’re doing your part to protect the environment.
Final Thoughts
While it may be tempting to reuse old gear after a long winter, fishing line is a perishable component of your tackle. Regularly inspecting your line for wear and replacing it based on its specific material properties is essential to prevent losing fish and damaging the environment. Ultimately, the cost of a new spool of line is a small price to pay for the confidence that your gear won’t fail when you finally hook “the big one.”
As fishing lines age, they can become brittle and lose elasticity, affecting performance and making it more difficult to cast and reel in fish. If you have an old 8-pound fishing line, it’s a good idea to inspect it carefully for signs of damage or wear, such as fraying, knots, or kinks.
If you notice any of these signs or if the line is several years old, it’s probably a good idea to replace it with a new one.
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