15 Egg Hacks Every Cook Should Know

3. Garnish hot coffee with eggshells.

Cost: $0* Goal: Lessen bitterness in coffee It may surprise you to learn that adding eggshells to hot coffee helps lessen its bitterness. Eggshells are alkaline; coffee is acidic. The bitterness in coffee is eliminated by adding the shells, which also smoothes and mellifies the flavor.

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Google/Pinterest: Add Eggshells to Hot Coffee Eggshells can also be used for boiling loose coffee grounds in a kettle of water to make campfire coffee. When the shells and coffee grounds are boiled together, the coffee grounds stay at the bottom of the pot. They also lessen the harshness of the coffee.