Processed beans that are stored in ordinary containers will last around 10-14 days. Packaging at home using foil will extend the shelf life up to 3-4 weeks, whereas roasted beans packed in sealed four-layer paper bags can be stored for up to 6 months.
Caffeine content in different types of coffee can vary. A standard cup of coffee (around 8oz) will contain an average of 94.8mg of caffeine. An Espresso on the other hand will have an average of 63mg of caffeine, and a standard latte will contain an average of 77mg of caffeine. The caffeine content depends on the size, strength and type of coffee you are consuming.
You can drink coffee while you are pregnant, although it is recommended to limit the amount of caffeine you consume to around 200mg – which is about the equivalent of two mugs of coffee. Drinking more than this while pregnant could increase the risk of miscarriage, or having a baby with a low birth weight. Ultimately, the decision to consume caffeine is up to you, but you can cut down by switching to decaffeinated drinks and having smaller cups of coffee.