http://www.eatbydate.com/hard-boiled-eggs-shelf-life-expiration-date/. Spectra 6 years. Yeah, you have to be careful about boiled eggs. If you are planning an Easter egg hunt using hard-boiled eggs, don't leave them out of the fridge for longer than about an hour if you plan to eat them later on.
Causes of Finger blister: The following medical conditions are some of the possible causes of Finger blister. There are likely to be other possible causes, so ask your doctor about your symptoms. 1  Scabies. 2  Chronic renal failure. 3  Atopic dermatitis. 4  Contact dermatitis. 5  Diabetes mellitus. 6  Obstructive biliary disease.
Cold: Extreme cold can cause blisters. For example, when a wart is frozen off, a blister will grow. Contact with irritants or allergens: Skin may blister when it comes in contact with some chemicals, cosmetics, and many plant allergens.