Soak the almonds in filtered water for at least an hour, or, preferably, overnight. Drain and rinse.
Blend the almonds with 3 1/4 cups filtered water, the maple syrup, salt, strawberries, and extract, until smooth. Transfer to tea bag (or preferred straining method), and strain. Twist and squeeze as much almond milk as possible from the bag. You should have a dry-ish almond meal in the bag when you're done, as well as silky smooth strawberry almond milk. Transfer to a jar and refrigerate.