Questions & Answers about Iss diese Sorte bloß nicht, weil sie tödlich ist!
What exactly does blo add to this sentence?
As a modal particle, blo intensifies the warning. While Iss diese Sorte nicht! simply means "Don't eat this sort!", adding blo makes it much more urgent. It translates to a strong "Just don't eat this sort!" or even "Don't you dare eat this sort!"
Why is the command Iss and not Esse?
Iss is the informal singular (du) command form of essen (to eat). Strong verbs that change their vowel from 'e' to 'i' in the present tense (like du isst) keep that 'i' in the imperative form, and the typical imperative ending is dropped entirely.
Why is blo placed right before nicht here?
Modal particles generally sit in the middle of a sentence, after pronouns and specific objects like diese Sorte. In a negative command, placing blo immediately before nicht acts to heavily emphasize the negative word, making the warning much stronger.
Why does the second part say weil sie tödlich ist instead of weil es tödlich ist?
In German, pronouns must match the grammatical gender of the noun they replace, even for inanimate objects. Since "it" refers back to diese Sorte, which is a feminine noun (die Sorte), you must use the feminine pronoun sie rather than the neuter es.