Why is wasabi sauce so hot?

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Tags

1. #called
2. #overdrive
3. #stimulate
4. #reaction
5. #sting
6. #allyl
7. #cough
8. #isothiocyanate
9. #chemical
10. #choke
11. #receptors
12. #important
13. #because
14. #wasabi
15. #tears
16. #makes
17. #horseradish