Guide 4 · 3 min read

Keeping your work area clean

A simple cleaning routine that prevents contamination and mix-ups.

What you will learn

  1. Before you start
  2. While you work
  3. When you finish
  4. Why 70% alcohol, not 99%

Before you start

While you work

When you finish

Why 70% alcohol, not 99%

For disinfecting surfaces, 70% isopropyl alcohol usually works better than 99%. The water it contains helps it act on germs, and it evaporates more slowly, so it stays wet long enough to work.

Quick check

Why use 70% alcohol instead of 99%?
Where should an open cap rest?

Supplies mentioned

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