The 7 types of waste Waste happens due to:

• Overproduction (too much quantity)
• Inventory (too much material used)
• Transportation (too long distances)
• Waiting time (too much time)
• Manufacturing process
• Unnecessary movement
• Occurring errors

Meanwhile, 2 other types of waste are often discussed:

• Waste due to poor ergonomics (especially with regard to employees)
• Talent not used or used incorrectly