On most lists of products containing estrogen, animal products like milk and beef are at the very bottom. Milk, for example, is said to provide 1.2 micrograms of estrogen per 100 grams.
Depends on where you go to get your fix. Starbucks Cold Brew (in stores nationwide since May 2015) and Dunkin' Donuts Cold Brew (in stores nationwide since August 2016) retail for different prices. Cost: Roughly $0.20 per ounce. $3.25 for a grande (16 fluid ounces) according to Starbucks.
Cold brew coffee can be used for iced coffee and hot coffee. By cold brewing your coffee, it gives it a rich, fuller smooth flavor and is less acidic and bitter than hot brewing your coffee. However, it does take a long time to make the first batch since you need to let it sit for 8-24 hours.