“Can I drink alcohol with Invisalign?”

Sure. Be responsible, have the case with you, remove your liners, have a drink, brush your teeth since alcohol has a lot of sugar, then put your liners back in.

Should be fine

The best option if you are going to eat or drink anything other than water is to take the trays out and floss and brush before reinserting them.  This is because the trays can stain and be damaged.  Drinks other than water and milk are acidic and will dissolve your teeth, so leaving the acidic fluid in the trays around your teeth where the saliva is impeded from protecting them will increase your decay or cavities potential and probability.  Secondly, Milk has sugars that the bacteria can use to create an acid to attack and dissolve your teeth.  Most mixed alcohol drinks have added sugars and acidic compounds that give them the different flavors people like. Straight alcohol is neither surgery nor acidic.

Yes.

Yes