| Answer | Crossword Clue |
|---|---|
| BENZOATE | Food preservative (with "of soda") |
| BENZOATE | ... of soda (food preservative) |
| BENZOATE | .. of soda: food preservative |
| SORBATE | With "potassium," it's a food preservative |
| guaiac | greenish-brown resin obtained from the guaiacum tree, esp. from Guaiacum officinale, used in varnishes, as a food preservative, and in medicine in various tests for the presence of blood |
| guaiacs | greenish-brown resin obtained from the guaiacum tree, esp. from Guaiacum officinale, used in varnishes, as a food preservative, and in medicine in various tests for the presence of blood |
