I have seen sentence structures like the following:

Once opened, the chicken broth is good for 2 days.

My two questions:

1. what tense should be used after once? past, or the past participle? So, which one is correct:

Once drunk, you should dispose of the bottle

or

Once drank, you should dispose of the bottle

?

2. Can such a sentence structure be used in formal contexts?

I have seen sentence structures like the following:

Once opened, the chicken broth is good for 2 days.

My two questions:

1. what tense should be used after once? past, or the past participle? So, which one is correct:

Once drunk, the bottle should be disposed of properly.

or

Once drank, the bottle should be disposed of properly.

?

2. Can such a sentence structure be used in formal contexts?

I have seen sentence structures like the following:

Once opened, the chicken broth is good for 2 days.

My two questions:

1- what tense should be used after once? past, or the past participle? So, which one is correct?

Once drunk, you should dispose of the bottle

or

Once drank, you should dispose of the bottle

2- Can such a sentence structure be used in formal contexts?

I have seen sentence structures like the following:

Once opened, the chicken broth is good for 2 days.

My two questions:

1. what tense should be used after once? past, or the past participle? So, which one is correct:

Once drunk, you should dispose of the bottle

or

Once drank, you should dispose of the bottle

?

2. Can such a sentence structure be used in formal contexts?