Given the background description of some cooking related query, summarize the question into a title

[EX Q]: Is there a special tool available just for cracking open pistachio nuts? I'm asking because as I have gotten older, I have developed severe arthritis and joint pains, making opening them with my fingers very painful. I've always loved pistachios and hate having to ask my wife to crack them open for me.I have tried using regular nut crackers, but the pistachio either slips out without cracking or the nut inside gets crushed.
[EX A]: Cracking open a pistachio

[EX Q]: I'm a regular consumer of tea (since about 2 years ago), usually from commercial tea bags.They advise to infuse tea for 3 to 5 minutes, but there is some times that I have left it longer by accident.So I have been wondering what are the consequences -if any- of infusing tea bag longer than recommended by sellers (sometimes up to 10 minutes). My question is general, but I'm especially interested in black tea.
[EX A]: What are the consequences of infusing a tea bag longer than recommended?

[EX Q]: I'm making a tomato sauce cold from tinned tomatoes and I was going to add tomato puree to thicken the sauce. Is it ok to use tomato puree without cooking it?
[EX A]:
Do you need to cook tomato puree?

