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.
Instead, cold brew coffee is made by steeping coarse-ground, dark-roasted coffee beans in cold water for 12-24 hours, then straining until free of sediment. The process requires a higher ratio of coffee to water than you would need when brewing hot coffee, but it is well worth it.