6.3 Safety and storage

Safety and Storage Guidelines for Microbial Enzymes

1. Core Safety Principle

Even though microbial enzymes are generally safer than chemicals, they are biologically active and can cause irritation or allergic reactions. Treat them carefully.

2. Personal Protective Equipment (PPE)

  • Mandatory:
    • Nitrile or rubber gloves
    • Face mask (surgical or respirator if handling powders)
    • Safety goggles
    • Long sleeves and long pants
    • Closed shoes
  • Optional (for dust or concentrated powder handling):
    • Face shield
    • Respirator (N95 or better)

3. Handling Guidelines

  • Use clean, dedicated tools and containers
  • Avoid direct contact with skin or eyes
  • Do not inhale powders or aerosols
  • Wash hands and exposed skin after application
  • Avoid eating, drinking, or smoking during application

4. Storage Guidelines

  • Store in a cool, dry, shaded place
  • Ideal temperature: 10–25°C (avoid freezing or excessive heat)
  • Keep airtight, sealed containers to prevent contamination
  • Keep away from direct sunlight and high humidity
  • Store away from food, water, and animal feed
  • Keep out of reach of children and livestock

5. Shelf-Life and Stability

  • Follow the manufacturer’s expiration date
  • Do not use if the enzyme powder has caked, changed color, or developed odor
  • Avoid repeated opening of the same container

6. Spill and Accident Response

Small spill (powder or liquid enzyme):

  1. Wear PPE
  2. Absorb or contain spill with dry sand, sawdust, or paper
  3. Collect and seal waste for proper disposal
  4. Wash area with water

Skin contact: Wash with soap and water immediately

Eye contact: Rinse for 15 minutes with clean water, seek medical attention if irritation persists

Inhalation: Move to fresh air; seek medical help if respiratory symptoms appear

7. Disposal

  • Do not pour directly into rivers, canals, or soil
  • Triple-rinse empty containers and dispose according to local DA / DENR guidelines
  • Do not reuse containers for food or water

8. Farmer-Friendly Summary

“Microbial enzymes are safe if handled carefully: wear gloves and mask, store cool and dry, and never mix with food or drink.”