Advantages of the Manual-Can Opener
- Require less resources to make.
- Use no energy, only require the use of your hands.
- They are cheaper to buy.
- Easy to store.
- Easy to clean.
Disadvantages of the Manual- Can Opener
- It may take longer to open a can.
- It is much easier to slice your hand on the can-opener.
- The lid of the can has to be pulled out by yourself.
- If you have arthritis it is harder to use the manual can-opener.
- Jam and stick, easily.