Coffee is one of the most popular beverages worldwide, enjoyed by millions of people every day. But have you ever thought about using the spent coffee grounds after brewing a cup of coffee? Used coffee grounds still contain a significant amount of caffeine, making them a potential source of this popular stimulant.
The caffeine content in used coffee grounds varies depending on the brewing method used. A study conducted by The Department of Nutrition, Food Science, and Physiology found that spent coffee grounds contain 3.59 to 8.09 milligrams of caffeine per gram of used coffee grounds. The average caffeine content in used coffee grounds is around 41 mg per half tablespoon (7g). This amount is considered moderate compared to a typical cup of coffee, which can contain anywhere from 95 to 200 mg of caffeine.
In addition to caffeine, used coffee grounds contain no calories, making them a low-calorie source of caffeine. However, it is important to note that the flavor and aroma of used coffee grounds may not be as pleasant as freshly brewed coffee.
When it comes to disposing of used coffee grounds, care should be taken as caffeine has been detected in waterways by some municipalities. It is also important to note that the direct application of coffee grounds to plants can inhibit growth, so it’s better to compost them first.
In conclusion, used coffee grounds can be a source of caffeine for those looking for a low-calorie alternative to freshly brewed coffee. However, it is important to consider the flavor, aroma, and potential environmental impact when using used coffee grounds. As always, it is best to consult with a healthcare provider before adding any new sources of caffeine to your diet.
Does Used Coffee Grounds have caffeine?
Yes, Used Coffee Grounds contain about 41mg of caffeine per 1-half tbsp (7 g). These grounds can then be composted or recycled back into the soil.
| Serving size | Caffeine Amount | Caffeine strength |
|---|---|---|
| 1 half tbsp (7 g) | 41 mg | MODERATE |
| 2 tbsp (14 g) | 82 mg | HIGH |
How Much Caffeine in Used Coffee Grounds?
- Caffeine Amount: 41 mg
- Caffeine strength: MODERATE
- Calories: 0
- Serving size: 1 half tbsp (7 g)
Ingredients in Used Coffee Grounds
- Used Ground Arabica Coffee
Compare caffeine in Used Coffee Grounds
| Items | Serving Size | Caffeine |
|---|---|---|
| Used Coffee Grounds | 7 gram | 41mg |
| Breyers Coffee Ice Cream | 8oz | 30mg |
| Jesse’s WakeUp Bar | 1 bar (24g) | 350mg |
| Zenergy Gum | per piece | 50mg |
| Cacao Nibs | 1 tsp (3g) | 10.4mg |
| Viter Caffeinated Gum | per piece | 60mg |
| Flow by Nooflux | 1 capsule | 84mg |
| Run Gum Energy | per piece | 50mg |
| Mocca Shots Gummies | per gummies | 100mg |
| Jolt Gum | per piece | 45mg |
FAQs
The average caffeine content in used coffee grounds is around 41 mg per half tablespoon (7g). This amount is considered moderate compared to a typical cup of coffee, which can contain anywhere from 95 to 200 mg of caffeine.
Yes, used coffee grounds contain no calories, making them a low-calorie source of caffeine.
The caffeine content in used coffee grounds can vary depending on the brewing method used. Brewing methods with longer brew times will result in less caffeine in the spent coffee grounds since caffeine is highly water soluble.
Direct application of coffee grounds to plants can inhibit growth, so it’s better to compost them first.
While used coffee grounds still contain caffeine, the flavor and aroma of spent coffee grounds may not be as pleasant as freshly brewed coffee. As with all sources of caffeine, it is best to consult with a healthcare provider before adding any new sources of caffeine to your diet.
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