How do you install coffee filters so they don’t leak?

With my coffee-maker, the filters tend to fold inward when you shut the door. Therefore, the large portion of dropping hot water does not get directed through the coffee grounds. The coffee ends up weak. How do you prevent this? There [...]

I have a science project in which i need to remove pollutants from water- what is the best way to do this?

I need to remove pollutants with a limited amount of materials.
They include: soda bottles, plastic tubing, cotton, duct tape, poly-fish filter, activated charcoal, coffee filters, kitty litter, vermiculite, baking soda, paper towal, gauze, sand, [...]

Coffee machines with permanent coffee filters?

Are coffee machines with permanent coffee filters good? I have a coffee machine that uses the disposable filters, and I’m considering buying one with a permanent filter. Are they good? Are they bad? What are the pros and cons about them?

Coffee machines with permanent filters are good. Paper filters take [...]

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If you took brewed coffee and put it back in the water tank in the coffee pot???

Okay, stick with me here. If you brewed a pot of coffee and then replaced the filter and coffee grounds with new and then used that brewed coffee where the water would normally go and ran it through [...]