Description
What is a Quassia bitter cup?
A Quassia cup is a drinking vessel carved from the wood of the Quassia tree (Quassia amara), a tropical hardwood native to Guyana and Suriname. When water is left in the cup overnight, the wood naturally releases bitter compounds called quassinoids into the water, creating a traditional herbal tonic used for centuries across the Caribbean and South America.
How do I use a bitter cup?
Fill the cup about two-thirds with clean water and let it sit overnight (6–8 hours). Drink the infusion in the morning on an empty stomach. Rinse the cup and let it air dry between uses. Most people use it daily as part of a morning wellness routine.
What is the bitter cup good for?
The Quassia bitter cup has traditionally been used to support digestion, reduce bloating, aid liver function, stimulate appetite, and assist with natural detox. It is also used in the Caribbean as a remedy for bacterial and fungal imbalances and to promote healthy skin. Always consult your doctor before use, especially if you are pregnant, breastfeeding, or taking medication.
What is a Kwasibita cup?
Kwasibita is the Guyanese Creole name for the Quassia tree and the bitter cup made from its wood. It is the same product — known by different names across the Caribbean and South America, including bitter cup, quassia cup, and kwasibita.
How long does a Quassia cup last?
With simple care, a Quassia cup can last for many months. When the wood starts to darken, let it dry out for 2–3 weeks before using again. Because it is natural untreated wood, it may expand or contract with temperature changes over time. If you notice any leaking, rest the cup in a bowl of water overnight instead of filling it — you get the same benefit.
Do you ship to all US states?
Yes, we ship the Quassia bitter cup across the United States. It is a natural wood product with no chemicals or additives.






