Opo squash, botanically a part of Lagenaria siceraria is an Oriental squash and a member of the Cucurbitaceae family. Botanically it is actually a variety of gourd though it is culinarily utilized as a summer squash.
 
Shelf Life: One month
How do you store bottle gourds?
Place bottle gourd in a zip lock bag/ freeze bag and store under refrigerated conditions. Chopped bottle gourd should be placed in glass/ stainless steel containers, covered with cling film, and then refrigerated.