If you love coffee like I do, you know how important it is to store it properly. One of the best ways is using paper tubes. They are simple, strong, and keep coffee fresh. But the tricky part is choosing the right size. Today, I want to make it easy for you. No complicated stuff, just simple numbers and options.
First, we need to know how much space your coffee takes. For powdered coffee, the volume depends on weight and density. Here’s the simple formula:
Volume = Weight ÷ Density
For example, 100g of coffee with a density of 0.32 g/cm³:
Volume = 100 ÷ 0.32 ≈ 312.5 cm³
We also add 10% extra space on top so it’s easy to scoop:
312.5 × 1.1 ≈ 347.2 cm³
This is the final volume we need for the tube.
Paper tubes are basically cylinders. To find the tube size, we use the cylinder formula:
Tube Volume = π × r² × h
Where r is the radius in cm, and h is the height in cm.
Now, let’s see how this works for different coffee weights.
Volume = 347.2 cm³
If radius = 2.5 cm, then height ≈ 17.7 cm
Another way: height = 12 cm → radius ≈ 3.04 cm
So you have two choices: tall and thin, or short and wide.
For 300g:
Base volume = 312 × 3 = 936 cm³
Add 10% headspace → 936 × 1.1 ≈ 1029.6 cm³
Now we calculate tube sizes:
Keep radius = 2.5 cm → height = 1029.6 ÷ (π × 2.5²) ≈ 52.4 cm (tall and narrow)
Reduce height to 20 cm → radius = √(1029.6 ÷ (π × 20)) ≈ 4.05 cm (short and wide)
For 500g:
Base volume = 312 × 5 = 1560 cm³
Add 10% → 1560 × 1.1 ≈ 1716 cm³
Tube sizes:
Radius = 2.5 cm → height = 1716 ÷ (π × 2.5²) ≈ 87.4 cm (tall and narrow)
Height = 25 cm → radius = √(1716 ÷ (π × 25)) ≈ 4.67 cm (short and wide)
| Coffee Weight | Option 1 (thin & tall) | Option 2 (short & wide) |
|---|---|---|
| 100g | r=2.5 cm, h≈17.7 cm | r≈3.04 cm, h=12 cm |
| 300g | r=2.5 cm, h≈52.4 cm | r≈4.05 cm, h=20 cm |
| 500g | r=2.5 cm, h≈87.4 cm | r≈4.67 cm, h=25 cm |
This way, you can choose the size that fits your shelf or your hand better.
If you want simple and clean tubes for coffee storage, check out Coffee & Tea Tubes. They are perfect for keeping coffee fresh and easy to scoop.
Q: How to choose the right coffee tube?
A: Do proper calculations or ask an EarthyCores expert to help.
Q: What is the standard height for a 100g paper tube?
A: Standard height is around 17.7 cm.
Q: What is the standard height for a 300g paper tube?
A: Standard height is around 52.4 cm.
Q: What is the standard height for a 500g paper tube?
A: Standard height is around 87.4 cm.
Q: How to calculate paper tube size?
A: Use the formula:
Volume = π × r² × h → solve for radius or height as needed.
