Clarinet Reed Guide
by ReedFinder on Sep 16, 2025
For over 300 years, clarinetists have to deal with reeds - those thin pieces of cane that can make your music sound amazing or terrible depending on tiny differences. Ask any player, and you’ll hear the same story: one reed feels like magic, the next feels unplayable. This article dives into the most common clarinet reed questions, and uncovers a few surprising secrets.
Parts of the Reed
QUESTION #1
What are the parts of the reed?
  • Tip – Controls ease of response/articulation and the blowing threshold: a thinner tip speaks more easily, while a thicker tip increases resistance. Tip properties also shape perceived quality and tonal balance (players tend to rate reeds with favorable tip-stiffness profiles higher).

  • Heart – The heart gives the reed structure, stability, and significantly affects tone and how the reed responds. An uneven heart can make the sound dull, or hard to control.

  • Vamp – The gradually tapered area from the tip to the heart. Its slope influences how easily the reed responds and how it balances between brightness and warmth.

  • Rails – Help control how evenly the reed seals on the mouthpiece and how freely it vibrates. If the rails are too thick or uneven, the reed may feel resistant or unbalanced, while well-shaped rails improve response and consistency.

Parts of the Reed
Origin
QUESTION #2
Where does the clarinet reed come from?

Most reeds are made from Arundo donax (giant cane), a plant related to bamboo. This plant originally grew in Asia and spread through the Middle East into the Mediterranean, where it has been cultivated for centuries. The warm, dry climate of southern France, Spain, and parts of Italy is especially well-suited to producing the dense, flexible cane that musicians prize.


In recent decades, high-quality cane has also been cultivated in other parts of the world. One notable example is Argentina, where intense sunshine and dry conditions build a distinct character.


Each growing region imparts subtle differences in strength, flexibility, and tone. While every reed is unique, all share the same remarkable origin in a single plant that connects players across cultures and generations.

Structure of the Reed
Reed Strength
QUESTION #3
Which reed strength should I choose?

Based on our reed guide, the average strength / experience is:

2.75

Beginners

3.13

Intermediates

3.66

Professionals

Harder is better?
No! Some top artists play softer reeds for flexibility. Your ideal strength depends on your embouchure, mouthpiece, and musical style. Generally, mouthpieces with a larger tip opening require softer reeds.
QUICK STRENGTH TEST

Answer a few questions. We'll suggest if you likely need a softer reed, a harder reed, or if you're already right.

Too bright / unstable (spreads)

Too dark / stuffy / resistant

Centered and clear

INTERACTIVE STRENGTH CHART

Reed strengths aren’t the same across brands.
Manufacturers group reeds by how they flex, and labels (like “3”) can cover a range of measured values.
That means a “3” from one brand might feel like a “3.4” from another.
At ReedFinder, we measure every reed individually.
With thousands logged, we made the first brand-independent strength chart.
It shows not only the normal strength distribution for each reed type but it also shows the variety within each box.

Reed Strength Chart
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Reed Strength Chart - Full View

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THE SALIVA MYTH

If you've ever wondered why oboists and bassoonists take a little water everywhere they go...

Most players wet their reeds with saliva, but the chemistry inside your mouth can slowly harm the cane. Research shows that saliva contains ammonia and alkalis. These compounds induce plasticization in wood, lowering stiffness and making reeds less resilient. On top of that, dried saliva leaves behind salts and calcium deposits that clog pores, stiffen the tip, and deaden vibrations. That’s why reed makers consistently advise: skip the spit - use water instead if you want your reeds to stay flexible and responsive longer. Our recommendation is to use water at least for the first couple of days (break-in period). In this phase, canes absorb much more water. Later on, you can switch to saliva if you prefer. To prolong the lifespan of your reeds, use humidity controlled cases and don't forget to rotate your reeds.

💡Tip: Put your new reeds, tip down, into a glass half full of water (doesn't work with half-empty) for no longer than 30 seconds.
Reed Questions
I just started to play the clarinet. Which reed strength should I choose?

It depends on your mouthpiece setup but starting with strength 2 should be a good start. As your embouchure and air support improves, you can gradually move up to strength 2.5 or 3.0 depending on your mouthpiece.

How long does a reed last, and how often should it be replaced?

It depends, but usually, if you break in your reeds and use a few in rotation, one reed can last about 10 to 15 hours of playing.

How do I know that my reed should be replaced?
Typical signs are:
  • Reed feels soft and mushy
  • Reed doesn't respond well or has lost its flexibility
  • Reed has visible cracks or chips
  • Pitch gets flat especially in the higher registers
  • Black spots, mold on the surface
  • If it feels significantly different compared to fresh reeds from the box
How do I break in a new reed?

Breaking in a new reed properly extends its lifespan and improves playability:


  • Day 1: Soak for 30 seconds in water, then play for just 5 minutes with gentle dynamics
  • Day 2-3: Gradually increase playing time to 10-15 minutes, still avoiding extremes
  • Day 4-5: You can start playing normally, but rotate between multiple reeds
  • Use a reed case to maintain proper humidity

Patience during break-in pays off with longer-lasting reeds.

Why do reeds vary even within the same box?

One important factor is the range of different strengths within a box. Other factors include the natural variability of the cane, fiber distribution, symmetry, and more.

What is the difference between filed and unfiled reeds?
  • Filed (French file): A part of the reed at the bark is removed (filed). It traditionally produces a brighter, more flexible response. Many jazz players prefer filed reeds for their slightly more open sound.
  • Unfiled: The bark is left intact (unfiled). It can add resistance, stability, and a darker, more centered tone. Classical players often like unfiled reeds for added control and a focused sound.

Neither type is objectively better — choice depends on mouthpiece, playing style, and personal taste. If you're unsure, try both and compare tone and response. Nowadays there are a lot of different cuts available and whether you choose filed/unfiled reeds is just one of many factors.

Why is the tip of my reeds wavy?

A wavy reed tip usually indicates moisture problems or poor storage:


  • Uneven drying: Reed dried too quickly or in uneven conditions
  • Over-soaking: Leaving reed in water too long can cause warping
  • Poor storage: Not using a proper reed case or leaving reeds on the mouthpiece
  • Manufacturing defect: Occasional quality control issues

Always dry reeds on a flat surface, use a humidity-controlled case, and avoid extreme temperature changes. A slightly wavy reed will usually flatten out and be playable after a few minutes of playing.

Need help choosing your reed?

We are here to assist you in finding your best reeds.

As a clarinetist and teacher, I know the struggle: opening box after box of reeds, only to find that most of them don’t play the way you hoped. Even when you're using the same brand, strength, and mouthpiece, the results can be wildly inconsistent. It’s frustrating, expensive, and time-consuming — and I always felt there had to be a better way. That’s what led me to create ReedFinder. ReedFinder uses real player feedback and cutting-edge machine learning analysis to learn what makes a reed work — for you. With every rating you give, our system gets smarter. Over time, it builds a profile of what works best for you personally — and recommends reeds accordingly. Instead of trial and error, you're getting a clearer path toward consistency.
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