Tea bag string with tag and autoclave: what they have in common

1. Step 1. Tea bag string with tag — is part of — Tea bag. For taking out the bag.
2. Step 2. Tea bag — is made of — Paper. Filter paper.
3. Step 3. Paper — is made of — Bleach. Bleach makes paper white: without it wood pulp would be yellowish grey.
4. Step 4. Bleach — is used in — Antisepsis. Chlorine bleach kills germs and is used to disinfect.
5. Step 5. Antisepsis — evolved into — Sterilization. Asepsis replaced Lister’s antisepsis.
6. Step 6. Sterilization — uses — Autoclave. Sterilization by steam.

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